The study was designed to examine the relations between negative affect, coping, and emotional eating. It was tested whether emotion-oriented coping and avoidance distraction, alone or in interaction with negative affect, were related to increased levels of emotional eating. Participants were 125 eating-disordered women and 132 women representing a community population. Measures included the Po...

here, a predator-prey model with hassell-varley type functional responses is studied. some sufficient conditions are obtained for the permanence and global asymptotic stability of the system by using comparison theorem and constructing a suitable lyapunov functional. moreover, an example is illustrated to verify the results by simulation.

Transversal vibrations of an axially moving string under boundary damping are investigated. Mathematically, it represents a homogenous linear partial differential equation subject to nonhomogeneous boundary conditions. The string is moving with a relatively (low) constant speed, which is considered to be positive.  The string is kept fixed at the first end, while the other end is tied with the ...

The standard k-center clustering problem is very sensitive to outliers. Charikar et al. proposed an alternative algorithm to cluster p points out of n total, thereby avoiding the distortion caused by outliers. The algorithm has an approximation bound of three times the true solution, but is very slow if implemented naively. We propose a modified implementation of the algorithm that runs signifi...

We study cross-selling operations in call centers. The following question is addressed: How many customer-service representatives are required (staffing) and when should cross-selling opportunities be exercised (control) in a way that will maximize the expected profit of the center while maintaining a pre-specified service level target. We tackle this question by characterizing control and staf...

The analytic center approach for bounded error parameter estimation was recently proposed as an alternative to the well-known Chybyshev and least squares estimates. In this paper, we show the asymptotic performance of this approach and prove that the analytic center converges to the true parameter under mild conditions.