A multi-cell computer model of a family house with cellar was developed with the ventilation and contaminant movement computer prediction program BREEZE. The model was used to simulate the movement of radon gas from the cellar to the living areas of the house. Field measurements were also carried out under various controlled ventilation strategies. The paper outlines the development of the comp...

Since prehistoric times milk has always been a basic element of man’s nutrition. It is the simplest, most complete and natural food because it contains ingredients, like fat and lactose, which give energy, proteins and minerals to the human body and contribute to its construction. Consumers usually ignore the simple truths about the great value of milk as food. This lack of information must be ...

introduction the potential hazards posed by exposure to radiation from radon have been of great concern worldwide, since it is especially associated with increased risk of lung cancer. some radioisotopes of radon progeny deposited in the human lungs emit β particles followed by the γ rays. while γ rays are comparatively less damaging to the respiratory system than α and β particles, it is the p...

Background: In Iran, architectures are often unaware of the risk of radon inhalation and how to reduce radon levels. Furthermore, radon considerations are not implemented in construction methods, construction materials and building utilization by regulatory authorities. Materials and Methods: In this study after reviewing the meteorological changes of Ramsar over the past 50 years (1955-2005), ...

Cryopreservation has the capacity to extend spermatozoa’s lifespan and viability. In addition, the semen samples can be collected, preserved and stored or sent to distant locations and still be used long after the death of the semen donor. In this study for the vitrification of dog sperm (fresh and swum-up sperm), different cryopreservation mediums on the basis of glycerol, milk and egg yolk we...

A hypothetical carbon tax on the footprint of fresh milk products from animals (cow’s milk) and plant-based substitutes (rice milk, oat soy almond was applied to estimated price income elasticities for Swedish household expenditure these products. Overall aims were (i) estimate consumption patterns in households (ii) simulate direct distributed effects a milk. The results indicated that is affe...

OBJECTIVE Exposure to radon is associated with approximately 10% of U.S. lung cancer cases. Geologic rock units have varying concentrations of uranium, producing fluctuating amounts of radon. This exploratory study examined the spatial and statistical associations between radon values and geological formations to illustrate potential population-level lung cancer risk from radon exposure. METH...

Indoor radon concentrations were measured in 77 schools of the prefecture of Xanthi in northern Greece. The arithmetic mean radon concentration is 231 Bq m(-3) with a range between 45 and 958 Bq m(-3). Thirty five schools have mean radon concentration above 200 Bq m(-3) and nine schools have mean radon concentration above 400 Bq m(-3). From continuous radon gas measurements in the school with a...