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Analysis of bone microstructure in ornithopod and theropod dinosaurs from Victoria, Australia, documents ontogenetic changes, providing insight into the dinosaurs' successful habitation of Cretaceous Antarctic environments. Woven-fibered bone tissue in the smallest specimens indicates rapid growth rates during early ontogeny. Later ontogeny is marked by parallel-fibered tissue, suggesting reduced growth rates approaching skeletal maturity. Bone microstructure similarities between the ornithopods and theropods, including the presence of LAGs in each group, suggest there is no osteohistologic evidence supporting the hypothesis that polar theropods hibernated seasonally. Results instead suggest high-latitude dinosaurs had growth trajectories similar to their lower-latitude relatives and thus, rapid early ontogenetic growth and the cyclical suspensions of growth inherent in the theropod and ornithopod lineages enabled them to successfully exploit polar regions. [ABSTRACT FROM AUTHOR]

The National Australia Bank (NAB), one of Australia's largest banks, announced losses in 2004 of AUD$360 million due to unauthorised foreign currency trading activities by four employees who incurred and deceptively concealed the losses. The NAB had in place risk limits and supervision to prevent trading desks ever reaching positions of this magnitude. However, the risk management policies and procedures proved ineffective. The purpose of this paper is to analyse the deceit, via a content analysis of official investigative reports and other published documents, to determine the extent to which the Bank's culture and leadership may have influenced the rogue traders' behaviour. The findings suggest that cultural issues, and the role played by the Bank's leaders, were influential in creating a profit-driven culture that ultimately impacted the Bank's foreign exchange operating activities. [ABSTRACT FROM AUTHOR]