Peter Wallis

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The effect of UV irradiation on human-derived Giardia lamblia cysts (WB isolate, cultivated using the gerbil model, and purified to homogeneity) was assessed using a 254nm collimated beam protocol. The infection kinetics of UV-exposed cysts were directly compared to the infection kinetics of control (non-UV-exposed) cysts. This demonstrated that a UV dose(More)
The emerging concept of host specificity of Cryptosporidium spp. was exploited to characterize sources of fecal contamination in a watershed. A method of molecular forensic profiling of Cryptosporidium oocysts on microscope slides prepared from raw water samples processed by U.S. Environmental Protection Agency Method 1623 was developed. The method was(More)
The goal of this workshop is to address the darker side of HCI by examining how computers sometimes bring about the expression of negative emotions. In particular, we are interested in the phenomenon of human beings abusing computers. Such behavior can take many forms, ranging from the verbal abuse of conversational agents to physical attacks on the(More)
A technology demonstrator is one thing but having people use a technology is another, and the result reported here is that people often ignore our lovingly crafted handiwork. The SERA project Social Engagement with Robots and Agents was set up to look explicitly at what happens when a robot companion is put in someone’s home. Even if things worked(More)
Companions as interfaces to smart rooms need not only to be easy to interact with, but also to maintain long-term relationships with their users. The FP7-funded project SERA (Social Engagement with Robots and Agents) contributes to knowledge about and modeling of such relationships. One focal activity is an iterative field study to collect real-life(More)
Search and rescue operations often require complex coordination of a range of resources, including human and robotic resources. This paper discusses a proposed new framework that allows agent technology to be used in conjunction with a virtual environment to provide a human controller with an effective visualisation of the distribution of a collection of(More)
Recent years have seen an upsurge of interest in the implications and applications of emotional behaviour in the human-computer interface (Picard 1997). In particular, research has focused on interactive systems involving visual and/or vocal modes of communication, where the user and/or the system may exhibit both positive and negative expressive behaviour(More)
Thirteen students with and twelve students without spelling disabilities judged whether sentences (1/3 all correct spellings, 1/3 with homonym foil, 1/3 with morpheme foil) were meaningful while event-related potentials (ERPs) were measured with EGI Geodesic EEG System 300 (128-channel hydro-cell nets). For N400, Rapid Automatic Switching (RAS) correlated(More)