Determination of the pre-mining geochemical baseline in bed sediments and the paleoecology in a watershed impacted by historical mining activity is of utmost importance in establishing watershed restoration goals. We have approached this problem in the Animas River watershed using geomorphologic mapping methods to identify old pre-mining sediments. A systematic evaluation of possible sites resu...

Placental vasculature, in particular the relationship between maternal and fetal blood circulations, has been a contentious issue for a long time. It was indeed a matter of dispute whether or not the fetal blood circulation was separate from or continuous with the circulation of the mother as stated by the Roman physician Galen (129–200). The Renaissance anatomist Julius Caesar Arantius (1530–1...

hyrcania (gorgan) has long attracted men of power due to its strategic and economic location. according to historical evidence, the iranian governments before the sassanid dynasty, attempted to dominate the region in order to consolidate their power. the sassanid dynasty, following the same policy of the former dynasties, not only established an important military base there but also constructe...

The majority of automated construction research and development has been bottom-up, from the construction / engineering side rather than top-down from the design end The first part of this paper is devoted to the design of a research programme which seeks to address topics related to the conceptual design of robotic systems for construction, and developing overall design principles for top-down...

the city of tabriz was one of the most important and historical cities of iran which had a pre-islamic background. this city was one of the main center of azarbayjan in the most historical era and it had been capital in some era like ilkhanian, gharaghoyonlu, agh ghoyonlu and even early of safavi era. historical background and continuous efforts residents of tabriz cause to infrastructure some ...

Purpose: The fundamental aim of this research was to determine the biomechanical characteristics of the medical bed made of carbon steel and an assessment of its stability. To define the biomechanical characteristics of the bed design, the finite element method (FEM) was applied. Additionally, the risk analysis was conducted according to the directives of ISO 14971 standard. Design/methodology/...

Background: Cimex lectularius (bed bug) are insects abundantly found in hot, temperate areas. This study is related to the outbreak of Cimex lectularius in a construction site around Polour in Amol, Iran. This cross-sectional study has examined 182 prefabricated houses made of intermodal containers [Conex] converted to a temporary housing, in a construction site.Methods...