Small shelly fossils (SSFs) are highly informative of the ‘Cambrian explosion’. Their palaeobiodiversity has been documented from lower Cambrian deposits worldwide but it remains elusive in areas such as Iran, despite this region occupying a critical position on north-western Gondwana margin during early Cambrian. This new study SSFs northern Iran provides large dataset understudied area. We re...

Twenty taxa of Lower Givetian rugose corals have been investigated in the Dreimühlen Formation from Meerbüsch quarry, Eifel Hills. The fauna consists mostly solitary coralla associated with some fasciculate specimens Disphyllum caespitosum (Goldfuss, 1826) and large massive colonies Argutastrea briceae (Rohart, 1988). genus Marennophyllum n. gen. is introduced Cystiphylloides marennense Coen-Au...

Humus forms are good indicators of environmental conditions and thus important in forest ecological processes. Altitudinal gradients considered as natural laboratory for evaluating soil processes humus form distribution. The objective this study was to evaluate the macromorphology along an altitudinal gradient (0-2000 m a.s.l.) covered with plain forest, mixed pure forests forest-grassland ecot...

Fragmentary, indifferently preserved, and of low diversity plant remains occur in basal part of the Khoshyeilagh Formation, northern Shahrud, eastern Alborz Ranges. The oldest hitherto reported from Iran, the remains are essentially assignable to lycophytes and psilophytes. Additionally, spores retrieved from the Khoshyeilagh Formation with reference to available data on spore-plant relation-sh...

BACKGROUND Developing maternal competence in first time mothers has a significant impact on neonate's growth psychosocial development and neonates growth and psychological development. Social support can be an important element for becoming a new mother. We aimed to investigate how social support and maternal competence change during pregnancy and 4 months after it and examine the relationships...

1Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, IR Iran 2Diabetes Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, IR Iran 3Department of Community Medicine, Alborz University of Medical Sciences, Karaj, IR Iran 4Non Com...

Department of Electrical and Computer Engineering, Parsian Institute of Higher Education, Qazvin, Iran E-mail: [email protected] Department of Computer Engineering, Faculty of Computer and IT, Islamic Azad University, Parand Branch, Parand, Tehran, Iran E-mail: [email protected] Department of Computer Engineering, Faculty of Engineering, Islamic Azad University, Karaj Branch, Karaj...

In the present data article, fluoride concentration levels of drinking water (with spring or groundwater sources) in 10 villages of Asara area located in Alborz province were determined by the standard SPADNS method using a spectrophotometer (DR/2000 Spectrophotometer, USA). Daily fluoride intakes were also calculated based on daily drinking water consumption. The fluoride content were compared...