In this study, the radioactivity concentrations and the associated annual effective dose rates of natural radionuclides in 60 water samples collected randomly from natural water resources scattered most over parts of Hebron ...

In this work, the indoor radon concentration, the annual effective dose rate and the annual equivalent dose to the lung and the populace risk were estimated in 33 elementary and secondary schools in Directorate of Education ...

The activity concentrations of naturally occurring radioactive materials such as 238U, 232Th and 40K were measured for 38 soil samples collected from diverse zones in the southern area of West Bank, Palestine using gamma-ray ...

We analyze experimentally and theoretically the effects of delayed optical cross-feedback in semiconductor ring lasers. We show that under appropriate conditions, feeding of only one directional mode back into the ...