As there is no evidence of previous studies on evaluating the level of job satisfaction and the major causes of dissatisfaction among the pharmacists in Iran, this study was designed. This study is a cross-sectional descriptive analysis of pharmacists practicing in Tehran private-sector pharmacies. We selected a stratified random sampling using number of prescriptions as a variable for stratifi...

soil colloid particles influence soil chemical and physical properties by their surface electrical charge. with respect to the importance of this issue from both agricultural and environmental points of view, charging behavior of a kaolinite sample was studied in the ph range of 4 to 10 and at three background electrolyte concentrations, including 0.005, 0.05, 0.5 m nacl, by potentiometric titr...

with the publication of one complete edition of the journal expedition in 1989 on hasanlu project by american archaeologists, engaged there during pre-revolutionary period, the present study highlights some of the accepted mistakes in the explanation and interpretation of the facts in the articles of that journal on one hand, and the beginning of the activities by iranian archaeologists in 2000...

Ionic size effects are significant in many biological systems. Mean-field descriptions of such effects can be efficient but also challenging. When ionic sizes are different, explicit formulas in such descriptions are not available for the dependence of the ionic concentrations on the electrostatic potential, that is, there is no explicit Boltzmann-type distributions. This work begins with a var...

The effect of thermal stratification on the ignition of a lean homogeneous n-heptane/air mixture at constant volume and high pressure is investigated by direct numerical simulations (DNS) with a new 58species reduced kinetic mechanism developed for very lean mixtures from the detailed LLNL mechanism (H.J. Curran et al., Combust. Flame 129 (2002) 253–280). Two-dimensional DNS are performed in a ...

We start with any polynomial p(x, y) defining a plane curve with singularity at 0 ∈ C. Let π: C̃ → C denote the blow-up of C at the origin and let j be a positive integer. The data (j, p) determines a holomorphic bundle E(j, p) on C̃ with splitting type j and extension class p. We then algorithmically compute numerical invariants of the bundle E(j, p) and use them as invariants of the curve. A co...

damask rose (rosa damascena mill.) has high economic importance and commercial value. the plant essential oil is used for perfumery, food and medicinal industries. it is necessary to know much about seed germination for study of genetic variation and breeding improved varieties of r. damascena. in this study seed germination of r. damascena were evaluated, using thermal period treatments. the d...

abstract in this research the thermal stratification of the water in the torogh dam basin and the resulted changes in its quality with respect to temperature, salinity and dissolved oxygen was investigated using the dynamic reservoir simulation model. the results indicated that in wet years such as 1998, when the average annual precipitation and the resulted inflows to the basin is higher than ...

Horticulture survey is a multi-purpose survey which is conducted ad hoc by Statistical Center of Iran (SCI). Availability of survey variables in the sampling frame suggests a multivariate stratification in each province based on its desired variables for acquiring a higher efficiency. There are several ways to stratify the sampling frame considering all stratification variables, such as using s...