Dark matter is a popular candidate to a new source of primary-charged particles, especially positrons in cosmic rays, which are proposed to account for observable anomalies.While this hypothesis of decaying or annihilating DM is mostly applied for our Galaxy, it could possibly lead to some interesting phenomena when applied for the other ones.In th
Abstract A many-body system in the vicinity of a first-order phase transition may get trapped Fountain in a local minimum of the free energy landscape.These so-called false-vacuum states may survive for exceedingly long times if the barrier for their decay is high enough.The rich phase diagram obtained in graphene multilayer devices presents a uniq
The distribution of the Persian bleak, Alburnus hohenackeri Kessler, 1870 in Iran is described.During a survey from 2009 to 2012, we captured 30 specimens of A.hohenackeri from Choghakhor Wetland in Tigris River basin Foot Rest Cover and Kardeh Dam in Harirud River basin of Iran.This is the first report of the occurrence of this species in these Re