The splitting of atoms, also known as nuclear fission, produces radiation and radioactivity. Dr Lise Meitner discovered how radioactivity could be produced in 1939. She found that firing a small particle called neutron into another atom cause to released. Radioactive atoms created this way can useful for detecting cancer or checking whether the body’s organs are working properly. When radioacti...

The aim of this study was to determine the plasma levels and the tissue distribution of otilonium bromide, measured as total radioactivity, after oral administration of 2 mg/kg of (14)C-labeled drug to rats. Radioactivity levels were very low in the plasma (ranging from 2.7 ng Eq/ml at 1.5 h to 0.6 ng Eq/ml at 24 h) as compared with those found in the gastrointestinal (GI) tract, indicating neg...

2,4,6-Trinitrotoluene (TNT)-contaminated soil was remediated by an anaerobic/aerobic slurry process. Prior to treatment, the soil was spiked with [14C]-TNT. Leaching experiments were carried out with the decontaminated soil to determine the degree of binding of the radiolabel under a variety of conditions. To simulate natural degradation processes of soil organic matter, each of three columns w...

The flooding dose method, which is used to measure tissue protein synthesis, assumes equilibration of the isotopic labeling between the aminoacyl-tRNA pool and the tissue and blood free amino acid pools. However, this has not been verified for a phenylalanine tracer in an in vivo study. We determined the specific radioactivity of [3H]phenylalanine in the aminoacyl-tRNA and the tissue and blood ...

Abstract In the present work, a two-parameter empirical formula is proposed, based on Geiger-Nuttall law, to study two-proton ( ) radioactivity. Using this formula, calculated radioactivity half-lives are in good agreement with experimental data as well results obtained by Goncalves et al . [ Phys. Lett. B 774 , 14 (2017)] using effective liquid drop model (ELDM), Sreeja Eur. J...