Rockefeller Archive Center Research Reports Online is a periodic publication of the Rockefeller Archive Center, a division of The Rockefeller University. Edited by Ken Rose and Erwin Levold under the general direction of the Center's director, Darwin H. Stapleton, Research Reports Online is intended to foster the network of scholarship in the history of philanthropy and to highlight the diverse...

beyond its quantity, natural light has unique properties used intelligently in iranian historical architecture in order to transfer spiritual concepts. religious buildings are a good context for re-reading of light concept. due to its valuable place in iranian-islamic belief as well as its direct relationship with wisdom and philosophy, the qualitative presence of light in architecture, aimed a...

in the current iranian poultry industry, antibiotics are the most frequently used additive in feeds to increase the productivity. regarding the negative effects on human health due to consuming chicken whose feeds contain antibiotics, finding an appropriate alternative is of a great importance. this study aims to find an appropriate and harmless feed additive to increase the quality and quantit...