This paper consider a new secure communication scene where a full-duplex transmitter (Alan) need to transmit confidential information to a half-duplex receiver (Bob), with a silent eavesdropper (Eve) that tries to eavesdrop the confidential information. For realizing secure communication between Alan and Bob, a novel two phases communication scheme is proposed: in Phase 1, Alan and Bob send art...

Learning to spell on the computer may lead to functionally useful writing skills. Alan and Suzy, teenagers with developmental disabilities, were already proficient on a variety of naming and matching tasks but had difficulties spelling; Suzy also made errors reading orally. In Experiment 1, computer teaching led to new anagram and written spelling performances. Suzy's reading also improved. On ...

INTRODUCTION Mobile work is not equivalent with telework, but the two share some characteristics. Our definition of mobile CSCW (Computer Supported Co-operative Work) includes (1) Individual workers move among several locations, as required by the objects of activity being to at least some part located outside of the computer; (2) People working together may be physically separated. Let us at s...

Economists acknowledge the problems of regulated transmission but take different views about the likely efficiency of merchant transmission. This paper examines the evidence on alleged market failure and regulatory failure as experienced in practice in Australia and Argentina. In these examples, merchant transmission (broadly defined to include private initiatives) has generally not exhibited t...

Toan Thanh Nguyen, Department of Psychology, Hiroshima University, Japan Yasuko Morinaga, Department of Psychology, Hiroshima University, Japan Irene Hanson Frieze, Department of Psychology, University of Pittsburgh, United States Jessica Cheng, Department of Psychology, University of Pittsburgh, United States Manyu Li, Department of Psychology, University of Pittsburgh, United States Akiko Doi...

Introduction The primary aim of educational software is to help students learn. Therefore, evaluation of this kind of software is crucial. Its aim is to test the functionality and usability of the design and to identify and rectify any problems (Dix et al. 1993). In particular, formative evaluation is one of the most critical steps in the development of learning materials because it helps the d...

Between August 20 and 22, 1995, officials and technical experts from Belarus, Kazakhstan, Russia, Ukraine, and the United States gathered at a conference sponsored by the Center for Nonproliferation Studies of the Monterey Institute of International Studies, in cooperation with Harvard University’s Center for Science and International Affairs, to assess the accomplishments, shortcomings, and fu...