21 research outputs found
Telepresence and the Role of the Senses
The telepresence experience can be evoked in a number of ways. A well-known example is a player of videogames who reports about a telepresence experience, a subjective experience of being in one place or environment, even when physically situated in another place. In this paper we set the phenomenon of telepresence into a theoretical framework. As people react subjectively to stimuli from telepresence, empirical studies can give more evidence about the phenomenon. Thus, our contribution is to bridge the theoretical with the empirical. We discuss theories of perception with an emphasis on Heidegger, Merleau-Ponty and Gibson, the role of the senses and the Spinozian belief procedure. The aim is to contribute to our understanding of this phenomenon. A telepresence-study that included the affordance concept is used to empirically study how players report sense-reactions to virtual sightseeing in two cities. We investigate and explore the interplay of the philosophical and the empirical. The findings indicate that it is not only the visual sense that plays a role in this experience, but all senses
Growth prospects of City industries
SIGLEAvailable from British Library Document Supply Centre-DSC:m01/28068 / BLDSC - British Library Document Supply CentreGBUnited Kingdo
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Early spears as thrusting weapons: isolating force and impact velocities in human performance trials
Human hunting has been a cornerstone of research in human evolutionary studies, and decades worth of re�search programmes into early weapon systems have improved our understanding of the subsistence behaviours
of our genus. Thrusting spears are potentially one of the earliest hunting weapons to be manufactured and used
by humans. However, a dearth of data on the mechanics of thrusting spear use has hampered experimental re�search. This paper presents a human performance trial using military personnel trained in bayonet use. Partici�pants thrusted replicas of Middle Pleistocene wooden spears into PermaGel™. For each spear thrust, impact
velocity was recorded with high-speed video equipment, and force profiles were recorded using a force transduc�er. The results demonstrate that training improves performance when compared with previous experimental re�sults using untrained participants, and that the mechanics and biomechanics of spear thrusting are complex. The trial confirms that previous spear thrusting experiments firing spears as projectiles are failing to replicate the entire spear thrusting event, and that crossbows are too powerful to replicate the low velocities involved in spear
thrusting. In order to better understand evidence of spear thrusting in the archaeological record, experimental
protocols accurately replicating and recording the mechanics of spear thrusting in the past are proposed
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Ownership, occupation and risk: a view of the City of London office market
Office returns in the City of London are more volatile than in other UK markets. This volatility may reflect fluctuations in capital flows associated with changing patterns of ownership and the growing linkage between real estate and financial markets in the City. Using current and historical data, patterns of ownership in the City are investigated. They reveal that overseas ownership has grown markedly since 1985, that owners are predominantly FIRE-sector firms and that there are strong links between ownership and occupation. This raises concerns about future volatility and systemic risk in a market strongly influenced by the cyclical behaviour and shocks of the international financial system