It was found that pipemidic acid and related compounds have the common property of inhibiting the conjugal transfer of R plasmids carried by Escherichia coli and Pseudomonas aeruginosa. This inhibition was not due to bactericidal activity of the compounds against donors, recipients, or R(+) transconjugants. However, it was correlated inversely with their minimal inhibitory concentrations, depen...

In content-based image retrieval systems, the content of an image such as color, shapes and textures are used to retrieve images that are similar to a query image. Most of the existing work focus on the retrieval e€ectiveness of using content for retrieval, i.e., study the accuracy (in terms of recall and precision) of using di€erent representations of content. In this paper, we address the iss...

In the present study, the amount of nitrate and phosphate leaching from agricultural lands into the Zanjanrood River in Iran was simulated using the Soil & Water Assessment Tool (SWAT) model. The measured average monthly discharges at the Sarcham station were used to calibrate and validate the SWAT model, and the SWAT Calibration and Uncertainty Program (SWAT-CUP) model was applied to perform t...