The ratings of discomfort from a wide variety of images can be predicted from the energy at different spatial scales in the image, as measured by the Fourier amplitude spectrum of the luminance. Whereas comfortable images show the regression of Fourier amplitude against spatial frequency common in natural scenes, uncomfortable images show a regression with disproportionately greater amplitude a...

In immersive virtual reality (IVR) it is possible to replace a person's real body by a life-sized virtual body that is seen from first person perspective to visually substitute their own. Multisensory feedback from the virtual to the real body (such as the correspondence of touch and also movement) can also be present. Under these conditions participants typically experience a subjective body o...

in politics and business to sacrifice the well-being of a faceless future population for the short-term benefits to be gained for present-day voters and shareholders appears to be irresistible. While the Ehrlichs and the other scientists cited here all tend to end their dire warnings on a more hopeful note, emphasising that a change of course is still possible, none of them seems overly optimis...

The relationship between design and sustainability (DfS) is forever evolving: from the early focus on cleaner production processes and resource efficiencies to more recent endeavours to promote environmentally benign behaviours or to counter the increasing impacts of climate change. The uncomfortable truth though is that the majority of design activity serves market forces at a global scale and...

Nasopharyngeal aspiration (NPA) is the preferred method for collecting specimens for viral culture in patients with respiratory tract infection. As virus identification may influence admission and treatment decisions, it is important to perform NPA in the emergency department. The test may be uncomfortable and poorly tolerated. This prospective study investigated patients' perceptions of NPA. P...