background: it is known that basic science and general courses play a vital role in training of medical students. the medical students' comprehensive basic science examination (cbse) scores seem to be a potential tool for predicting their comprehensive pre-internship examination (cpie) scores. purpose: to evaluate the predictive validity of medical students' cbse scores for predicting their cpi...

Many people who do data analysis take only a few classes in statistics and hence, in general, get introduced only to classical methods of statistics; i.e., least squares, normal theory, and possibly maximum likelihood methods. The motivation for most of these techniques is the maximizing of a function of the data with respect to some parameter—mean, variance, slope, e.g. Calculus is used by tak...

introduction because of expansion of agricultural activities and excessive use of chemical fertilizers and location of municipal and industrial wastewater of andimeshk, it is possible for this aquifer to be polluted. therefore, the aim of present study is to assess the aquifer vulnerability of andimeshk plain and recognition of sensitive areas against pollution which this work can be conducted ...

introduction: due to sensitiveness of flow to roughness coefficient (rc), selection of this coefficient is important in earth canals designing purposes. precision selection of this coefficient is necessary for design and operation of earthen canals purposes. overestimation of the actual amount of this coefficient will cause an underestimation for flow velocity. accordingly, sedimentation in the...

to perform stability analysis and study g*e interaction, eight commercial sugar beet varieties were evaluated in eight major sugar beet producing areas of karaj, mashad, miandoab, esfahan, shiraz, kermanshah, moghan and hamadan in three years using a randomized complete block design with four replications. the evaluated varieties were br1, 7233, pp.8, ic, 7233-p29, pp22, h5505 and 41rt. having ...