This study examined attentional processes underlying skilled motor performance in threatening situations. Twenty-four trained participants performed a simulated rally driving task under conditions designed either to direct the focus of attention toward the explicit monitoring of driving or a distracting secondary task. Performance (lap time) was compared with a "driving only" control condition....

In this paper we give an explicit description of the representation matrix of a Heisenberg type action previously constructed by Blanchet et al. Our construction is based on the combinatorial part of Yoshida’s construction. We give the matrix in terms of a ribbon graph and its admissible colorings.We show that the components of the representation matrix satisfy the external edge condition, whic...

Explicit self-representations often conflict with implicit and intuitive self-representations, with such discrepancies being seen as a source of psychological tension. Most of previous research on the psychological effects of mindfulness-meditation has assessed people's self-attitudes at an explicit level, leaving unknown whether mindfulness-meditation promotes changes on implicit self-represen...

We present an explicit expression for the condition number of the truncated total least squares (TLS) solution of Ax ≈ b. This expression is obtained using the notion of the Fréchet derivative. We also give upper bounds on the condition number which are simple to compute and interpret. These results generalize those in the literature for the untruncated TLS problem. Numerical experiments demons...

In three-dimensional QED, which is analysed in the 1/N expansion, we derive a sufficient and necessary condition for a nontrivial solution of the Dyson-Schwinger equation to be a chiral symmetry breaking solution. In the derivation, a normalization condition of the Goldstone bound state is used. We compare this condition with the explicit solutions given by Appelquist et al and find no inconsis...

quadruped robots have unique capabilities for motion over uneven natural environments. this article presents a stable gait for a quadruped robot in such motions and discusses the inverse-dynamics control scheme to follow the planned gait. first, an explicit dynamics model will be developed using a novel constraint elimination method for an 18-dof quadruped robot. thereafter, an inverse-dynamics...

In this paper, we study and analyze absolute and relative condition numbers of the spectral projections for regular periodic eigenproblems. The main contribution is to derive explicit expressions of the condition numbers of the j-th left and right spectral projections. Numerical examples are given to illustrate the proposed condition numbers for the spectral projections associated with periodic...

We give a new sufficient condition on the boundary conditions for the exponential stability of one-dimensional nonlinear hyperbolic systems on a bounded interval. Our proof relies on the construction of an explicit strict Lyapunov function. We compare our sufficient condition with other known sufficient conditions for nonlinear and linear one-dimensional hyperbolic systems.

This paper investigates the well posedness of ordinary differential equations and more precisely the existence (or uniqueness) of a flow through explicit compactness estimates. Instead of assuming a bounded divergence condition on the vector field, a compressibility condition on the flow (bounded jacobian) is considered. The main result provides existence under the condition that the vector fie...