Background—Radioactive stents have been reported to reduce in-stent neointimal thickening. An unexpected increase in neointimal response was observed, however, at the stent-to-artery transitions, the so-called “edge effect.” To investigate the factors involved in this edge effect, we studied stents with 1 radioactive half and 1 regular nonradioactive half, thereby creating a midstent radioactiv...

By using stereospecifically double-labelled radioactive mevalonates it was shown that betulaprenols-6 to -9, found in the woody tissue of Betula verrucosa, each contain three biogenetically trans-isoprene residues and that the remaining residues are biogenetically cis. The results obtained with these radioactive mevalonates also indicated that the activity of isopentenyl pyrophosphate isomerase...

The structural stability of a waste package is essential for containing radioactive the long term in repository. A silo-type disposal facility would require more severe verification integrity, because packages staked with several tens meters and overburdens crushed rocks shotcretes. In this study, safety was analyzed repository, located approximately 100 m below sea level Gyeongju, Korea. Finit...

BACKGROUND Radioactive stents have been reported to reduce in-stent neointimal thickening. An unexpected increase in neointimal response was observed, however, at the stent-to-artery transitions, the so-called "edge effect." To investigate the factors involved in this edge effect, we studied stents with 1 radioactive half and 1 regular nonradioactive half, thereby creating a midstent radioactiv...

Although there are a number of reports concerning the uptake of various radioactive nuclides from surrounding water by aquatic organisms1), the quantitative informations on the transfer of radioactive substances through aquatic food chains have been scarcely obtained until now. In near future, in accordance with the rapid developement of the peaceful utilization of atomic energy in Japan, the p...

THE SUCCESSFl'L application of radioactive indicators in physiology caused the early introduction of a radioactive component into the erythrocytes and their use in blood volume determinations. While this method has found application in animal experiments, it is not very suitable for determination of the blood volume of humans, since ironlabeled red corpuscles can only be obtained in vivo, and t...

Dilution is the mixing of radioactive waste with non-radioactive material, whereas downblending is the mixing of high-level radioactive waste with low-level radioactive waste. These processes have been applied predominantly at nuclear sites as part of the decontamination procedures for the disposal of blended wastes in licensed facilities. Proper health and safety assessments should be carried ...

Cobalt is an essential trace element with a broad range of physiological and biochemical functions. However, biochemical speciation of cobalt and structural investigations of cobalt-containing complexes with biomacromolecules are challenging, as the participation of cobalt in physiological processes is limited by its very low concentrations. Emission Mössbauer spectroscopy (EMS), with the radio...