OBJECTIVE To examine the impact of a mentoring and skills group intervention for preadolescent children in foster care on placement stability and permanence at 1-year postintervention. METHODS A randomized controlled trial was conducted with 9- to 11-year-old children who were maltreated and placed in foster care (n = 54 control; n = 56 intervention). State child welfare records provided info...

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.

In our previous paper [1] we investigated under what circumstances the identities of a partially ordered (universal) algebra remain valid when the algebra is completed to a suprema preserving superior completion ([1], (2.6), (3.7), (5.11)). In general we use the terminology and notation of [1], with some minor exceptions that will be noted later. We there showed that if both sides of an identit...

The man-machine integration era (MMIE) is marked by sensor ubiquity, whose readings map human beings to finite numbers. These numbers—processed by continuously changing, optimizing/learning, finite precision, closed loop, distributed systems—are used to drive decisions such as insurance rates, prison sentencing, health care allocations and probation guidelines. Optimization and system parameter...