In this paper, we model any nonconvex quadratic program having a mix of binary and continuous variables as a linear program over the dual of the cone of copositive matrices. This result can be viewed as an extension of earlier separate results, which have established the copositive representation of a small collection of NP-hard problems. A simplification, which reduces the dimension of the lin...

The development of social–emotional competence is of key importance during early childhood, particularly during the preschool years. We too often believe that early childhood education should focus on the promotion of academic skills to increase intelligence and, therefore, neglect the importance of social and emotional learning. Children who are socially and emotionally well adjusted do better...

Cellular processing is a simple yet attractive model for parallel processing. First we will give a short introduction to cellular processing, then we will describe the two main elements of a corresponding program development environment: CDL, covering the local behaviour and ACL, covering the global behaviour of cellular models. Finally we will explain on which target architectures this softwar...

Program understanding tools manipulate program representations, such as abstract syntax trees, control-flow graphs, or data-flow graphs. This paper deals with the use of visitor combinators to conduct such manipulations. Visitor combinators are an extension of the well-known visitor design pattern. They are small, reusable classes that carry out specific visiting steps. They can be composed in ...

his study investigated the farmers’ feedback on Agricultural Development Project’s (ADP’s) performance. The study was carried out in Kogi State, Nigeria. Interview schedules were used to collect data from 160 contact farmers and 80 field extension workers who were randomly selected using multistage random sampling techniques. The data collected were subjected to both descriptive and non-paramet...

The U. S. Department of Energy's (DOE) Accelerated Strategic Computing Initiative (ASCI) program calls for the development of high end computing and advanced application simulations as one component of a program to eliminate reliance upon nuclear testing in the U.S. nuclear weapons program. This paper presents results from the ASCI program's examination of needs for focused validation and verif...