The model of a tired random walker, whose jump-length decays exponentially in time, is proposed and the motion of such a tired random walker is studied systematically in one-, twoand threedimensional continuum. In all cases, the diffusive nature of walker breaks down due to tiring which is quite obvious. In one-dimension, the distribution of the displacement of a tired walker remains Gaussian (...

OBJECTIVE To examine the potential of the New South Wales baby-walker regulation to reduce injury. DESIGN Injury surveillance data were used to reconstruct baby-walker injury incidents, which were examined in conjunction with the 2000 NSW baby-walker regulation, which requires a specified level of stability and a gripping mechanism to stop the walker at the edge of a step. SETTING AND PARTI...

We study the starvation of a lattice random walker in which each site initially contains one food unit and the walker can travel S steps without food before starving. When the walker encounters food, it is completely eaten, and the walker can again travel S steps without food before starving. When the walker hits an empty site, the time until the walker starves decreases by 1. In spatial dimens...

In previous studies, an omni-directional walker was developed for walking rehabilitation. Walking training programs are stored in the walker so that rehabilitation can be carried out without a physical therapist. However, the walker sometimes strays from the predefined path because of center-of-gravity shifts and load changes. It is necessary for the walker to precisely follow the paths defined...