In this paper we investigate the exact peroidic wave shock solutions of the Burgers equations. Our purpose is to describe the asymptotic behavior of the solution in the cauchy problem for viscid equation with small parametr ε and to discuss in particular the case of periodic wave shock. We show that the solution of this problem approaches the shock type solution for the cauchy problem of the in...

Assessments of substance use behaviors often include categorical variables that are frequently related to other measures using logistic regression or chi-square analysis. When the categorical variable is latent (e.g., extracted from a latent class analysis [LCA]), classification of observations is often used to create an observed nominal variable from the latent one for use in a subsequent anal...

This study investigates the relationship between service quality of electronic supermarkets and customer loyalty by conducting questionnaire survey on 237 buyers in Tran Anh electronic supermarkets in Hanoi, Vietnam. This questionnaire was constructed with 28 retail service quality items covering 5 service quality dimensions namely Physical Aspects, Reliability, Personal Interaction, Problem So...

The effect of presession attention on the later occurrence of problem behavior was examined with elementary-school children with a range of disabilities. Results of analogue functional analyses suggested an escape function, an attention function, or both. Following the analogue functional analyses, the effects of two antecedent conditions (10-min ignore vs. 10-min attention) were compared on pr...

Our research group is examining how first year engineering students develop problem-solving skills. It is important to select and design problems such that they promote self-efficacy and build effective problem solving skills. However, it is a challenge for engineering educators to determine the appropriate difficulty or rigor of assignments or assessments that will accomplish this, especially ...