In this paper we combine Japanese data on radiation exposure and cancer mortality with U.S. data on cancer incidence and lethality to estimate the effects of ionizing radiation on cancer incidence. The analysis is based on the mathematical relationship between the mortality rate and the incidence and lethality rates, as well as on statistical models that relate Japanese incidence rates to U.S. ...

In the framework of axion-gauge fields models, primordial gravitational wave perturbations could be generated during inflationary epoch from not only quantum fluctuation gravitons but also dynamics hidden gauge coupled with an axion field. We investigate evolution and field additional SU(2) group those energy densities after inflation. show that extra radiation component bosons produced by deca...

Estimating the biological risks from space radiation remains a difficult problem because of the many radiation types including protons, heavy ions, and secondary neutrons, and the absence of epidemiology data for these radiation types. Developing useful biophysical parameters or models that relate energy deposition by space particles to the probabilities of biological outcomes is a complex prob...