julfa beds at zal section, northwest iran, with 33 meter thickness, are composed of gray, cream to red limestones, nodular in some parts with intercalations of green, gray to red shales. they are very important because they are very rich in the late permian brachiopod. this research, which is focused on the mentioned fauna from the zal section, is led to identification of 38 species of 21 gener...

This study reports an effective and simple method for culturing the comb jellyfish, Beroe cucumis. The breeding another jelly, Bolinopsis mikado, was published by Ikeda et al. (2022), in which mikado bred stably large numbers, then provided as food to developing Fertilized eggs were found a 235-L tank two days after five parental cucumis housed tank, individuals isolated from next day. day foun...

Henry Cohn is principal researcher at Microsoft Research New England and adjunct professor of mathematics at the Massachusetts Institute of Technology. His e-mail address is cohn@ microsoft.com. For permission to reprint this article, please contact: [email protected]. DOI: http://dx.doi.org/10.1090/noti1474 On March 14, 2016, the world of mathematics received an extraordinary Pi Day s...