This paper addresses two questions related to educational multimedia applications: • What lessons should we learn from today's Graphical User Interfaces (GUIs)?, and • What the user interfaces should look like in the future? We address the first question by drawing on our experience from two multimedia projects, that deal with multimedia proceedings and multimedia lectures. For the second quest...

In recent years, we have developed a visual communication interface for reporting observations in which messages can be constructed using a spatial arrangement of icons. Each icon on the interface represents a concept or idea. This paper reports about research on a visual language interface, which allows users to create structured messages of icon strings simultaneously in a two-dimensional par...

Trust decisions on inter-enterprise collaborations involve a trustor’s subjective evaluation of its willingness to participate in the specific collaboration, given the risks and incentives involved. In earlier work, we have built support on automating routine trust decisions based on a combination of risk, reputation and incentive information. Non-routine cases must be dealt with by human users...

This paper presents the main features of Theorema’s user interface. We briefly describe how mathematical knowledge can be expressed in the Theorema Formal Text Language and how the knowledge can be used for proving, solving, computing. We illustrate how the system presents the proofs it generated and how the user can influence the proof search process interactively.

Haptic feedback has been shown to improve user performance in Graphical User Interface (GUI) targeting tasks in a number of studies. These studies have typically focused on interactions with individual targets, and it is unclear whether the performance increases reported will generalise to the more realistic situation where multiple targets are presented simultaneously. This paper addresses thi...

We present in this paper a CAD tool that aims at designing low-energy buses. The Graphical User Interface (GUI) we developed manages many techniques dealing with the addressed problem: simple coding, coding subject to fixed / dynamic probabilities and an enhanced dynamic probabilitiesbased technique. Moreover, this environment allows tuning the parameters of data encoding / decoding and is able...

lhe paper prescnts an c:nablms system for user mterfac:e design. realised m the GMD project "User Interface Design Assistance (IDA)" The goal ofthe projcct is to assist interface designers dunng the design proccss ofthc usc:r interfacc. cnabling them to solve design problcms in the arca of h11man fo.:tors bascd uscr intcrfacc dc:sign (usab1lity enginec:ring) The en:tbling srstcm is realiscd wit...

Brad A. Myers Carnegie Mellon University 48.

background and objectives: intravenous drug using is a main risk factor for getting infected with hiv, hepatitis b and c viruses. the syphilis is a common infection. the aim of this study was to investigate the seroepidemiology of hiv, syphilis, hepatitis b and c among the intravenous drug users (idus) at loghman hakim hospital, tehran. materials & methods: a descriptive (cross- sectional) stud...

Background Occult hepatitis B infection (OBI) is considered a risk factor for progression of liver disease in patients with hepatitis B virus (HBV) infection. This disease progression is reported to be more significant in those with concomitant HIV infection. We aimed to determine the prevalence rate of OBI in a sample of HIV-positive patients. Materials and Methods: Sixty-six HIV-infected pati...