The oblique collision between the northeastern margin of Arabian platform and Iranian microcontinent has led to transpressional deformation in Zagros orogenic belt central part Alpine–Himalayan belt. Although previous articles have emphasized dextral sense shear belt, this paper, using several indicators kinematic upon field checking microscopic thin-section studies, evidence development a sini...

Between 2012 and 2019, the surveys conducted by French archaeological mission of Soulaimanih Governorate in Rania Peshadar plains Iraqi Kurdistan, previously devoid Paleolithic records, have yielded numerous lithic assemblages from open-air sites, caves rock-shelters. We present here six three districts surveyed, Rania, Peshdar Dukan. Despite absence chronostratigraphic contexts still fragmenta...

The Persian squirrel (Scuirus anomalus) has a long furry tail, which is longer than half of the body, and lives in the Zagros forest. It is distributed in the west and northeast of Asia. In the summer 2011 a Persian squirrel with signs of hair loss and itch in head and tail was referred to the veterinary clinic. There were arthropods in the lesion in the first survey. Many of these parasites we...

Four new species from the amphipod genus Niphargus are described, namely N. borisi sp. nov., N. bisitunicus sp. nov., N. darvishi sp. nov. and N. sharifi sp. nov. All four species of this predominantly subterranean genus were collected from springs in the Western region of Iran (Zagros region), which is the eastern borderline of the genus range. The species are morphologically diagnosed, descri...

The Iranian cave barb (Iranocypris typhlops Bruun & Kaiser, 1944) is a rare and endemic species of the family Cyprinidae known from a single locality in the Zagros Mountains, western Iran. This species is "Vulnerable" according to the IUCN Red List and is one of the top four threatened freshwater fish species in Iran. Yet, the taxonomic position of I. typhlops is uncertain. We examined phylogen...

Biological responses often obey Weber's law, according to which the magnitude of the response depends only on the fold change in the external input. In this study, we demonstrate that a system involving a simple autocatalytic reaction shows such a response when a chemical is slowly synthesized by the reaction from a faster influx process. We also show that an autocatalytic reaction process occu...