BACKGROUND Previous research has indicated that children's behaviors have long-term effects on later life. Hence it is important to monitor the development of health risk behaviors in childhood. This study examined the changes in health risk behaviors in fourth- to sixth-grade students in northern Taiwan from 2001 to 2003. METHODS The Child and Adolescent Behaviors in Long-Term Evolution (CAB...

This paper proposes a method that acquires the purposive behaviors based on the estimation of the state vectors. In order to acquire the cooperative behaviors in multi robot environments, each learning robot estimates local predictive model between the learner and the other objects separately. Based on the local predictive models, robots learn the desired behaviors using reinforcement learning....

Stability is an important issue in multicast, especially in mobile environment where joining and leaving behaviors occur much more frequently. In this paper, we propose a scheme to improve the multicast stability by the use of motion prediction. The mobile node (MN) predicts the staying time before entering the new network, if the time is long enough, it will ask the new network to join the mul...

{ We describe a set of visual behaviors developed over the years, in the general context of robot navigation. The rst set of behaviors solve three basic problems in vehicle navigation: obstacle avoidance, docking to a surface and moving along corridors or walls. Another set of visual behaviors were developed for the active stereo head Medusa, with the purpose of tracking objects with arbitrary ...

background the pre-marital sex and live-in relationship among young people are increasing at an alarming rate. remote consequences of such high risk behaviors are increase in the incidence of stds (including hiv), unsafe and illegal abortion, adolescent pregnancy and motherhood, single mother child/abandoned child, juvenile delinquency and many more. objectives the aim of this study was to inve...