background: functional constipation (fc) is one of the important digestive disorders in pediatrics. its prevalence varies in different communities. the purpose of this study was to determine the prevalence of fc in our area between the school children and the impact of school on it. methods: this study was done on 4 to 12 years old children of nine schools and kindergartens of amirkola, (2007)....

The purpose of this study was to determine the importance of eleven professional competencies related to needs assessment and program development; a secondary purpose was to identify the best time these competencies should be learned. The study followed a survey research design, in which 441 randomly selected extension educators in the North Central Region of the United States responded to a qu...

Although psychologists study both the objective (behavior) and the subjective (phenomenology) components of cognition, we argue that an overemphasis on the subjective drives a wedge between psychology and other closely related scientific disciplines, such as comparative studies of cognition and artificial intelligence. This wedge is particularly apparent in contemporary studies of episodic reco...

Call a set of assertions sd complete (with respect to a class of programs .9') if for any p, a e sof and S e ,g', whenever 1/21.5{q} holds, then all intermediate assertions can be chosen from st This paper is devoted to the study of the problem which sets of assertions are complete in the above sense. We prove that any set of recursive assertions containing true and false is not complete. We pr...

The recent proposal of theories with compactified large extra dimensions is reviewed. We pay especial attention to brane world models with low tension where the only relevant degrees of freedom at low energies are the Standard Model (SM) particles and the branons, which are transversal brane oscillations. By using an effective Lagrangian, we study some phenomenological consequences of these sce...