Practical application of international recommendations and safety standards in the systematic planning and implementation of remediation of sites or areas with residual radioactive material.

The IAEA fundamental safety objective isand this must be done ', while ensuring that people and the environment, present and future are protected against radiation risks (IAEA 2006No. SF-1). In addition,(IAEA 2006No.

Rehabilitation of the former nuclear test site at Maralinga.

Large areas of the former British nuclear test site at Maralinga were contaminated by the explosive dispersal of plutonium. The Australian Government, in consultation with stakeholders, determined that the site should be cleaned-up so that it is fit for unrestricted habitation by the Aboriginal traditional owners (Maralinga Tjarutja). Engagement with the stakeholders, particularly the Maralinga Tjarutja, determined that the specific criterion for rehabilitation was 5 mSv yand that some restrictions on permanent occupancy should remain.

Effects of surface-active organic matter on carbon dioxide nucleation in atmospheric wet aerosols: a molecular dynamics study.

Organic matter (OM) uptake in cloud droplets produces water-soluble secondary organic aerosols (SOA) via aqueous chemistry. These play a significant role in aerosol properties. We report the effects of OM uptake in wet aerosols, in terms of the dissolved-to-gas carbon dioxide nucleation using molecular dynamics (MD) simulations.

Synthesis and characterisation of the uranium pyrochlore betafite [(Ca,U)₂(Ti,Nb,Ta)₂O₇].

Betafite of composition [(Ca,U)2(Ti,Nb,Ta)2O7] was prepared via a solid state synthesis route. The synthesis was shown to be sensitive to initial reactant ratios, the atmosphere used (oxidising, neutral, reducing) and time. The optimum conditions for the synthesis of betafite were found to be heating the reactants required at 1150°C for 48 h under an inert gas atmosphere.

Decidual spiral artery remodeling during early post-implantation period in mice: investigation of associations with decidual uNK cells and invasive trophoblast.

Circumferential remodeling of spiral arteries (SAs) during pregnancy is crucial for regulating maternal blood flow into the placenta and clinically important. However its mechanism is still ill defined in humans and mice. In mice, several important aspects of decidual SA remodeling (SAR) remain unexplored and were addressed here using morphometrics by examining SAs within the mesometrial half of the decidua basalis between embryonic day 6.