Papers

Examining the Usability of Touch Screen Gestures for Older and Younger Adults

OBJECTIVE: We examined the usability issues associated with four touch screen gestures (clicking, dragging, zooming, and rotating) among older and younger users. BACKGROUND: It is especially important to accommodate older users’ characteristics to ensure the accessibility of information and services that are important to their quality of life. METHOD: Forty older and 40 younger participants … Continue reading “Examining the Usability of Touch Screen Gestures for Older and Younger Adults”

Exploring factors influencing Chinese user’s perceived credibility of health and safety information on Weibo

The spread of non-credible health and safety information on microblog sites may lead to serious consequences when people use such sites as the basis for critical decisions. This study investigated the factors influencing Chinese microblog users’ perception of the credibility of health and safety information. Credibility cues related to the source (source credentials), the message … Continue reading “Exploring factors influencing Chinese user’s perceived credibility of health and safety information on Weibo”

Impact of knowledge representations on problem-oriented learning in online environments

The objective of this study was to investigate the impact of knowledge representations on problem-oriented learning in online learning environments. The study compared the impact of knowledge map representation with traditional hierarchical representation with regard to learning memory and problem-solving performance. Twenty-nine students participated in an experiment in which they studied online materials with the … Continue reading “Impact of knowledge representations on problem-oriented learning in online environments”

An integrated computer-based procedure for teamwork in digital nuclear power plants

Computer-based procedures (CBPs) are expected to improve operator performance in nuclear power plants (NPPs), but they may reduce the openness of interaction between team members and harm teamwork consequently. To support teamwork in the main control room of an NPP, this study proposed a team-level integrated CBP that presents team members’ operation status and execution … Continue reading “An integrated computer-based procedure for teamwork in digital nuclear power plants”

Mental workload measurement for emergency operating procedures in digital nuclear power plants

Mental workload is a major consideration for the design of emergency operation procedures (EOPs) in nuclear power plants. Continuous and objective measures are desired. This paper compares seven mental workload measurement methods (pupil size, blink rate, blink duration, heart rate variability, parasympathetic/sympathetic ratio, total power and (Goals, Operations, Methods, and Section Rules)-(Keystroke Level Model) GOMS-KLM-based … Continue reading “Mental workload measurement for emergency operating procedures in digital nuclear power plants”

The Influence of Network Structural Properties on Information Dissemination Power in Microblogging Systems

The potential of microblogging networks to spread information, ideas, and influence via social links has been recognized. Individuals at central or critical positions in the microblogging networks are expected to play an important role in spreading information, but this belief must be tested with empirical investigations in actual information dissemination. Furthermore, it is possible that … Continue reading “The Influence of Network Structural Properties on Information Dissemination Power in Microblogging Systems”

Design of a mobile social community platform for older chinese people in urban areas

The increasing proportion of the older population and changes in the Chinese family structure make older Chinese people more vulnerable to social isolation than they previously were. This article illustrates the development of a mobile social application for older people in urban areas in China. The application facilitates the organization of leisure-time activities between older … Continue reading “Design of a mobile social community platform for older chinese people in urban areas”

An Empirical Study of Tagging for Personal Information Organization: Performance, Workload, Memory, and Consistency

Tagging allows users to organize their information and retrieve it later with multiple, freely chosen keywords, which is impossible with categorical folders. The need to organize information for personal later retrieval has been found to be one of the most important motivations for tagging. Despite the popularity of the concept, more empirical evidence is still … Continue reading “An Empirical Study of Tagging for Personal Information Organization: Performance, Workload, Memory, and Consistency”