Browsing by Author "Gao, Y."

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    The Acute Cognitive Benefits of Casual Exergame Play
    (ACM, 2012) Gao, Y.; Mandryk, R. L.
    Acute cognitive benefits, such as temporary improvements in concentration, can result from as few as ten minutes of exercise; however, most people do not take exercise breaks throughout the day. To motivate people to receive the cognitive benefits of exercising in short bursts multiple times per day, we designed an engaging casual exergame. To determine whether there are cognitive benefits after playing our game, we conducted two studies to compare playing ten minutes of our casual exergame to a sedentary version of the game or exercise on a treadmill. We found acute cognitive benefits of the casual exergame over the sedentary version (but not treadmill exercise), demonstrated by significantly improved performance on two cognitive tests that require focus and concentration. Significant improvements were also found in participants' affective states after playing the casual exergame. Finally, our casual exergame produces similar exertion levels to treadmill exercise, but is perceived as more fun.
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    Numerical study using explicit multistep Galerkin finite element method for the MRLW equation
    (Numerical Methods for Partial Differential Equations, 2015-03-05) Chen, Zhangxing (John); Mei, L.; Gao, Y.
    In this article, an explicit multistep Galerkin finite element method for the modified regularized long wave equation is studied. The discretization of this equation in space is by linear finite elements, and the time discretization is based on explicit multistep schemes. Stability analysis and error estimates of our numerical scheme are derived. Numerical experiments indicate the validation of the scheme by L2ā€“ and Lāˆžā€“ error norms and three invariants of motion.4