The aim of this study was to determine the ambient concentration, content of heavy metals and morphology and mineralogy of PM2.5 samples collected from air pollution monitoring station in Haft-Tir square (central Tehran). For this purpose, PM2.5 samples were collected by means of low-volume sampling device during five months (April-August 2019). Based on the obtained results, there is more load...

The main sources of cadmium in soil-plant continuum in amounts that might present a hazard are liquid and solid wastes of sewage sludge, farm manures and fertilizers. In the southwest of Iran (Khuzestan Province) over 50,000 ha of land is under sugarcane (Saccarum officinarum) cultivation and more than 80,000 ha will be under sugarcane by the end of the year 2000. In these sugarcane fields, abo...

Recently risk assessment and management in cultural-historical collections is one of the important subjects in the field of preventive conservation research. Different methods and aspects of are used and studied in the field of risk assessment in archaeological sites and collections and significant results are achieved and published in last decades. One of the types of archaeological collection...

Gastric cancer is the second most common cancer and the second cause of death due to cancer worldwide. Gastric adenocarcinoma is the most common fatal cancer in Iran. Recently, some studies have reported a marked proximal shift in the distribution of gastric cancer. An analytic cross-sectional study was done on 350 patients with gastric cancer in Rasoul-e-Akram, Firoozgar and Haft-e-T...

The main sources of cadmium in soil-plant continuum in amounts that might present a hazard are liquid and solid wastes of sewage sludge, farm manures and fertilizers. In the southwest of Iran (Khuzestan Province) over 50,000 ha of land is under sugarcane (Saccarum officinarum) cultivation and more than 80,000 ha will be under sugarcane by the end of the year 2000. In these sugarcane fields, abo...

Background: The presence of heavy metals in water resources above threshold levels can be toxic and carcinogenic for consumers. This study determined the concentrations of heavy metals in the drinking water distribution network and resources of the city of Ilam in Iran. Methods: In this cross-sectional study from 6 sources of water supply and also, different parts of the water supply system of...

fantasy in ahmad reza ahmadi's haft ruz-e hafte daram (i have seven days of the week)   a.    mohammadi*              a. r. ruzbehani** buo- ali sina university of hamedan   abstract fantasy is one of the most important and useful literary genres for children and young adults. it is a genre that permits the writer to create an imaginative mysterious, scary, and magical atmosphere. thus the read...