4,170 research outputs found

    Familiars: social gaming with PASION

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    The PASION (Psychologically Augmented Social Interaction Over Networks) project is designed to research social presence technologies and their effect on individual and group behaviour within mediated collaborative environments. A mobile multiplayer social game called Familiars is being designed, where the success and rank of a player within the game is directly linked to the qualities of the player's in-game social network. By examining the structures of the game-wide social network generated through playing the game, the aim is to identify patterns in the interactions which can be used to direct further studies and build future versions of the game that will enhance the game experience, bringing more of the face-to-face social value to technologically mediated games and hence mediated collaborations in general

    At A Tangent

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    Dataset on coherent control of fields and induced currents in nonlinear multiphoton processes in a nanosphere

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    We model a scheme for the coherent control of light waves and currents in metallic nanospheres which applies independently of the nonlinear multiphoton processes at the origin of waves and currents. Using exact mathematical formulae, we calculate numerically with a custom fortran code the effect of an external control field which enable us to change the radiation pattern and suppress radiative losses or to reduce absorption, enabling the particle to behave as a perfect scatterer or as a perfect absorber. Data are provided in tabular, comma delimited value format and illustrate narrow features in the response of the particles that result in high sensitivity to small variations in the local environment, including subwavelength spatial shifts

    Exercise and Academic Achievement in Children: Effects of Acute Class-Based Circuit Training

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    Purpose. For schools, the increasingly imposed requirement to achieve well in academic tests puts increasing emphasis on improving academic achievement. While treadmill exercise has been shown to have beneficial effects on cognitive function and cycling ergometers produce stronger effect sizes than treadmill running, it is impractical for schools to use these on a whole-class basis. There is a need to examine if more ecologically valid modes of exercise might have a similar impact on academic achievement. Circuit training is one such modality shown to benefit cognitive function and recall ability and is easily operationalised within schools. Methods. In a repeated measures design, twenty-six children (17 boys, 8 girls) aged 10-11 years (mean age 10.3; SD ± 0.46 years) completed the Wide Range Achievement Test (WRAT 4) at rest and following 30 minutes of exercise. Results. Standardised scores for word reading were significantly higher post exercise (F(1,18) = 49.9, p = 0.0001) compared to rest. In contrast, standardised scores for sentence comprehension (F(1,18) = 0.078, p = 0.783), spelling (F(1,18) = 4.07, p = 0.06) mathematics (F(1,18) = 1.257, p = 0.277), and reading (F(1,18) = 2.09, p = 0.165) were not significantly different between rest and exercise conditions. Conclusions. The results of the current study suggest acute bouts of circuit based exercise enhances word reading but not other areas of academic ability in 10-11 year old children. These findings support prior research that indicates acute bouts of exercise can selectively improve cognition in children

    Coherent control of radiation patterns of nonlinear multiphoton processes in nanoparticles

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    We propose a scheme for the coherent control of light waves and currents in metallic nanospheres which applies independently of the nonlinear multiphoton processes at the origin of waves and currents. We derive conditions on the external control field which enable us to change the radiation pattern and suppress radiative losses or to reduce absorption, enabling the particle to behave as a perfect scatterer or as a perfect absorber. The control introduces narrow features in the response of the particles that result in high sensitivity to small variations in the local environment, including subwavelength spatial shifts
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