1. Research overview Energy efficiency is the chief concern in sensor networks as they have limited power and it often requires tradeoffs with throughput and latency when designing a medium access control (MAC) protocol. The goal of this research is to maximize energy savings based on sleep mode operation and Transmit Power Control (TPC) to save power in Mote-based sensor networks. Two key obje...

This research used vicarious-learning procedures in an attempt to increase students’ knowledge of the domain and enhance the quality of their questions in an intelligent tutoringsystem involving computer-controlled animated agents. Students who overheard a dialogue in which a virtual tutee asked a virtual tutor questions during acquisition wrote significantly more in free recall and asked signi...

Abstract Introduction Young females presenting to hospital with acute abdominal pain (AP) are often discharged without clear diagnoses. Gynaecological causes including chlamydia and gonorrhoea (C&G) increasing, however STI testing remains underutilised. This study aims to: 1. Establish robust in an ambulatory surgical clinic (ASC), utilising collaborative pathways between GUM EGS services. ...

Routing Protocol for Low power and Lossy network (RPL) topology attacks can downgrade the network performance significantly by disrupting the optimal protocol structure. To detect such threats, we propose a RPL-specification, obtained by a semi-auto profiling technique that constructs a high-level abstract of operations through network simulation traces, to use as reference for verifying the no...

Recent advancements in developing the low power micro sensors have attracted the researchers around the globe to build Wireless Sensor Networks (WSN) for various fields of interests. A typical architecture of a WSN consists of many sensing devices that are capable of probing the surroundings and deliver the collected data, using a radio, to a command center. The lifetime of a WSN mostly depends...

Multi-agent systems an bene t from the possibility of broadasting messages to a wide audien e. The audien e may in lude overhearing agents whi h, unknown to senders, observe onversations and, among other things, pro-a tively send suggestions. Current mainstream agent ommuni ation languages however la k adequate support for broad asting. This paper de nes the requirements for a form of broadast ...

This work introduces a formal framework for the social acquisition of ontologies which are constructed dynamically from overhearing the possibly conflicting symbolic interaction of autonomous information sources, and an approach to the pragmatics of communicated ontological axioms. Technically, the framework is based on distributed variants of description logic for the formal contextualization ...