The importance of the slip flow over the no-slip condition is widely accepted in microscopic scaled domains with the direct impact on microfluidic and nanofluidic systems. The popular Navier Stoke’s (N-S) flow model is largely utilized with the slip flow phenomenon. In the present study, the finite integral transform scheme along with the shift of variables is implemented to solve the equation ...

G. I. Taylor [ 1 ] showed that the flow representing a double array of vortices which has the same periodicity in both the x and y directions is a solution to the equations of motion in two dimensions of a linearly viscous fluid. It was shown in [2] that such a result is also true for 'second order' fluids if time scale which characterizes the memory of the fluid and the size of the vortices sa...

Background: Cognitions and attitudes, especially anthropological attitudes, are influential in human behavior. Objectives: The present study was conducted to investigate the cognitive evolution of the human concept in elementary school female students and its adaptation to Piaget’s theory of cognitive development. Materials & Methods: The present research method is qualitative of deductive-ind...

Qaleh-Zari is a Fe-oxide Cu-Ag-Au vein type deposit located 180 km south of Birjand, in eastern Iran. Host rocks are mainly Tertiary calc-alkaline to K-rich calc-alkaline with transition to shoshonitic andesite and andesitic basalts, but in the central part shale and sandstone of Jurassic age. Andesitic rocks from the western region of Qaleh-Zari were dated to 40.5 ± 2 Ma. Four trends of faults...

the main purpose of this study was to compare parenting self efficacy between mothers of children with attention deficit-hyperactivity disorder (adhd) and mothers of normal children.one hundred twenty mothers including 60 mothers of children with adhd and 62 mothers of normal children were selected. in each group the participants were allocated between three subgroups of preschool, first and se...

In countries where textbooks are considered as the main source of teaching/learning process, textbook evaluation seems to be inevitable and necessary. The current study aimed at evaluating the new English textbook entitled “Vision 1”, developed for the Iranian first grade high school students. To achieve this goal, two groups of participants took part in the study. They consisted of 30 teachers...

Heart murmurs are a common finding during physical examination of children but most of them are innocent or normal.recognizing the etiology of heart murmurs can help us in differential diagnosis of them.the peresent study was undertaken to determine the prevalence and etiology of heart murmurs  in 4761 school children.the sex ratio was nearly 1:1 ,murmurs were heard in 459 students (9.64%) with...