Mobile phone use is banned or regulated in some circumstances. Despite recognized safety concerns and legal regulations, some people do not refrain from using mobile phones. Such problematic mobile phone use can be considered to be an addiction-like behavior. To find the potential predictors, we examined the correlation between problematic mobile phone use and personality traits reported in add...

OBJECTIVE The possibility that smoking prevalence among junior and senior high school students may decrease with increasing mobile phone bill was reported by the mass media in Japan. We conducted a nationwide survey on adolescent smoking and mobile phone use in Japan in order to assess the hypothesis that mobile phone use has replaced smoking. METHODS A total of 70 junior high schools (respon...

We investigate the behavior of two users and one jammer in an AWGN channel with and without fading when they participate in a non-cooperative zero-sum game, with the channel’s input/output mutual information as the objective function. We assume that the jammer can eavesdrop the channel and can use the information obtained to perform correlated jamming. Under various assumptions on the channel c...

Measuring usability is an essential task to ensure the application is accurate, has sufficient in speed and to ensure the safety of the user from strain injury as well. The increasing number of mobile phone users means that many businesses have deployed mobile applications to gain competitive advantage. Literature on how to measure usability is limited in the area of mobile phone applications. ...

This paper presents results from a study on mobile phone use to connect two rural hospitals in Malawi with community health workers (CHWs), the hospitals work with. Mobile phone use at the hospitals has helped reduce the need for face-to-face communication to permit patient information exchange, meetings and appointments scheduling, as well as work coordination. On the other hand mobile phone u...

Despite all the benefits the mobile phone offers, during a phone call it largely remains unused. Access to its applications, services and vast amount of online information is prohibited since the user interface is engaged with an active call. In this paper we explore interactions during active phone calls to satisfy common scenarios and tasks and also support interpersonal distributed interacti...

A Wireless Sensor Network (WSN) is a self-configure network of sensor nodes communicate among themselves using radio signals and deployed in quantity to sense, monitor and to understand the physical world. A jammer is an entity which interferes with the physical transmission and reception of wireless communications. Reactive jamming attack is a major security problem in the wireless sensor netw...

The theory of stochastic vector quantisers (SVQ) has been extended to allow the quantiser to develop invariances, so that only"large"degrees of freedom in the input vector are represented in the code. This has been applied to the problem of encoding data vectors which are a superposition of a"large"jammer and a"small"signal, so that only the jammer is represented in the code. This allows the ja...