We introduce an approach to revealing the likelihood of different population histories that utilizes an explicit model of sequence evolution for the DNA segment under study. Based on a phylogenetic tree reconstruction method we show that a Tamura-Nei model with heterogeneous mutation rates is a fair description of the evolutionary process of the hypervariable region I of the mitochondrial DNA f...

metagabbro, metadiabase and metabasalt of the chah palang and me'raji mountains associated with lower paleozoic metamorphites are situated in the south of arousan. metabasites of these areas are relatively similar in terms of mineralogy and geochemical characteristics. rock-forming minerals of the me'raji metabasites are feldspar, amphibole, biotite, sphene, epidote, chlorite ± calcite. metagab...

the chah morra cu occurrence is located 15 to 20 km north of toroud village, south of shahrood. in this area, cu deposits are hosted by the andesitic sequence and most of rocks in this area are composed of andesite. veins contain minerals such as digenite, bornite, covellite, malachite, cuprite, tenorite, native copper and fe oxide and hydroxides. also some orthomagmatic magnetite and chalcopyr...

Department of Pharmacology, Lagos State University College of Medicine, Ikeja, Lagos, Nigeria. Correspondence: T. A. John, Department of Pharmacology, Lagos State University College of Medicine, PMB 21266, Ikeja, Lagos. Email: [email protected] Tel: 234 7028338910 Abbreviations: SMC, Smooth muscle cell; CHAH, Chronic high altitude hypoxia; alpha SMA, alpha Smooth muscle actin; eNOS, endo...

the newly found chah?r t?qi of mileh milehgeh is one of the fire-temples of the sassanian era that was built, like other fire-temples of that time, with pieces of rock and plaster. this chah?r t?qi which is the remaining core of a larger building consists of four stone walls of different sizes surrounded by a round corridor. inside this fire-temple there is a raised platform for setting up fire...