Background: The presence of heavy metals in water resources above threshold levels can be toxic and carcinogenic for consumers. This study determined the concentrations of heavy metals in the drinking water distribution network and resources of the city of Ilam in Iran. Methods: In this cross-sectional study from 6 sources of water supply and also, different parts of the water supply system of...

The book Gusheh: Iranian Melody Culture is the result of thirty years of Arshad Tahmasebi’s life long work, and has undergone a shift in some of the key concepts due to the length of time it took to be written. These changes especially include the great changes in scholarship and music research in recent years. Nonetheless, closer studies show that this book is still very helpful and beneficial...

In this work, gamma exposure buildup factors (E.B.F.) for plane sources and two-layer shields of water and lead were calculated. Also, coherent scattering effect usually left unattended in this type of geometry and application was considered. First, gamma EBFs were calculated by using MCNP, without considering coherent scattering effect for a normal and anisotropic plane source and double strat...

One of the challenges facing the increasing growth of the aquaculture industry in the last decade is paying attention to the production of economical aquafeeds. Fishmeal as a source of protein required by aquatic species faces problems such as price increment, quality fluctuation and the presence of various chemical and microbial contaminants. Therefore, attention to the use of alternative prot...