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While there has been much emphasis over the last decade on the science of nanotechnology and on the implications and risks of potential applications, it is now timely to increase attention to the emerging dynamics of nanotechnology commercialization. This paper examines, from a global perspective, where and how corporations are entering into nanotechnology innovation. The paper tests the proposition that a significant shift has occurred in recent years in the orientation of corporate nanotechnology activities—from research discovery to patented applications. It also examines the extent to which the character and structure of corporate nanotechnology activity by country initially reflects national innovation system characteristics and prior public research funding inputs in the stage when discovery is most emphasized. The results indicate that national innovation systems characteristics are significant factors in the commercialization shift of nanotechnology and highlight the importance of innovation system policy factors. We also observe the influence of cross-border international invention linkages, suggesting that national innovation policies also need to be open and international in orientation.  相似文献   
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The quali-quantitative determination of two barbiturates, thiopental and its metabolite pentobarbital, in head and pubic hair samples of a woman who had been sexually assaulted during hospitalisation, is reported. Hair was analysed by means of solid-phase microextraction (SPME) and gas chromatography-multiple mass spectrometry (GC-MS-MS), in chemical ionisation conditions. Thiopental and pentobarbital were found in three proximal head hair segments (sample 1A: 0.30 and 0.40 ng/mg; sample 1B: 0.20 and 0.20 ng/mg; sample 3: 0.15 and 0.20 ng/mg) and pubic hair sample. Two distal head hair segments were negative for both barbiturates. Despite the lack of collection and toxicological analysis of blood or urine samples within the hospital setting, analytical findings from hair revealed the use of the anaesthetic agent thiopental to sedate the victim quickly and deeply and commit sexual assault.  相似文献   
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