Background: Visualattention is known as acritical base for learning.Thepurpose of the present study was to design, develop and evaluate the test-retest and internal consistency reliability as well as face, content and convergent validity of thecomputer- based selective visual attention test (SeVAT) for healthy first-grade school children.   Methods :In thefirst phase of this stud...

An essential component of an operational definition is measurement. A simple and accurate definition of measurement is the assignment of numbers to a variable in which we are interested. These numbers will provide the raw material for our statistical analysis. Measurement is so common and taken for granted that we seldom ask why we measure things or worry about the different forms that measurem...

Increased complexity of current manufacturing systems together with dynamic conditions and permanent demands for flexible and robust functionality makes their management and control very difficult and challenging. Workflow simulation is an effective approach to investigate dynamic workflow scheduling policies and evaluate the overall manufacturing system performance. The results attained in sim...