introduction: one of the sources of natural occurring radiation was soils. the purpose of article was to determine soil pollution by radiation absorbed dose rate, radium equivalent activity, external hazard index, annual gonad dose equivalent and annual effective dose equivalent. methods & materials: the soil samples was located in chahbahar city in blouchestan of iran, was chosen for studying ...

The biosynthesis of the plant antitumor agent, taxol, was studied by feeding radioactive or stable isotope-labeled precursors to cut stems or to inner bark tissue of Taxus brevifolia. The labeled taxol was purified to radiochemical purity and subjected to chemical degradation or was analyzed by electrospray tandem mass spectrometry. It was demonstrated that in the plant taxol is synthesized fro...

This analysis is based on Lloyd's database concerning sea transport accidents for the 1994–1997period and completes the previous analysis based on 1994 data. It gives an accurate description of theworld fleet and the most severe ship accidents (total losses), as well as the frequencies of accident (inaverage on the 1994–1997 period the frequency of accident for cargo carrying ships ...

The Swedish Defence Research Agency (FOI) was commissioned by the Swedish Nuclear Power Inspectorate (SKI) to carry out a pilot-study which would serve as the basis for a revised set of regulations regarding physical protection and administrative routines for the transport of radioactive material. The pilot-study was to develop a prototype model by which a comprehensive threat analysis could be...