نتایج جستجو برای: background concentrations
تعداد نتایج: 1108431 فیلتر نتایج به سال:
All living organisms are exposed to ionizing radiation comprising cosmic rays coming from outer space, terrestrial nuclides occurring in the earth’s crust, building materials, air, water and foods and in the human body itself. The exposures are constant and uniform for all individuals everywhere including the dose from ingestion of 40K in food. Cosmic rays are, more intense at higher alt...
In cities with an extensive air quality monitoring (AQM) system, the results of pollutant concentration measurements obtained in this system can be used not only for current assessments pollution, but also analyzes aimed at better identification factors influencing and tracking trends changes taking place regard. This achieved use statistical methods that allow assessment variability measuremen...
There is no place on the Earth, the planet we live on, where the natural background radiation level is zero. Since the birth and even in our fetal stage, we have been exposed to different sources of natural radiation. Life, in fact, evolved in a radiation environment that was much more harsh than today. Earth serves as a source of terrestrial radiation. Uranium, thorium, and radium are among th...
The article highlights the results of a theoretical study concept heutagogy, its foundations and principles. Heutagogy is based on humanistic theory approaches to learning, applying holistic approach development adult learners' abilities. It presents new an innovative model learning that meets current requirements time, complex dynamic changes define our lives are reflected in need for continuo...
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