The effects of toxicants depend on the dose and the time in the life span when exposure occurs. The biology of adolescence is distinctive and provides opportunities for unique actions of toxicants both in terms of disruption of function and disruption of maturation. Maturation of a number of organ systems occurs during this period, including not only the reproductive system but also the respira...

Introduction: Educational environment is an important determinant ofstudents’ behavior and its elements are associated with academic achievement and course satisfaction. The aim of this study was to determine students’expectations of the ideal educational environment.Methods: This was a qualitative study with content analysis approach. Using a theoretical sampling method, we selected eight stud...

Construction projects are one of the most important economic sectors in the world. At the same time, these projects are one of the hazardous industries that cause many accidents resulting from injuries and deaths, occupational diseases, delay in time, environmental problems and other direct and indirect damages. While in many industries, the issue of health, safety and environment is meticulous...

T recognition that environmental factors can affect human health can be traced at least as far back as the thirteenth century when the King of England banned the burning of sea-coal in London because it was “prejudicial to health” (Brimblecombe 1999). In the eight-hundred years that have followed, our understanding of biology, chemistry, and medicine have evolved considerably. Alongside large-s...