Medical student views of and responses to expectations of professionalism

Funding this study is part of the corresponding author's (EAS) doctoral programme of research funded by the University of Aberdeen, and supervised by EH and JC. Acknowledgements we thank all the students who took part in this project, and Professor Rona Patey, the Director of the Institute of Education for Medical and Dental Sciences, University of Aberdeen, for her support of this project.Peer reviewedPostprin

Carbon fibres reinforced composites. Electrical impedance analysis: a gateway to smartness

International audienceFor more than 7 years, our research work is focussed upon the electrical behavior of carbon fiber reinforced composites. Effectively carbon/polymeric matrix laminates can be considered as an electrically conductive network (i.e. carbon fibers) embedded in an insulating medium (i.e. the polymeric matrix). Consequently, from an electrical point of view laminated composites have been modelled owing to combinations of electrical resistances (i.e. fibers themselves and the contact points between the fibers) and capacitances (i.e. polymeric matrix). During their manufacturing, composite material such as thermoset matrix composites for instance, undergo various changes in their physical (including electrical and mechanical) properties and in their geometrical characteristics. In fact, in the case of manufacturing processes such as oven curing (vacuum bag), autoclave curing or heating plate press, beside the chemo-rheological changes, the laminated parts are the place of a compaction phenomenon inducing changes in fiber volume fraction and thicknesses. The idea developed in this paper is that since the carbon/polymeric matrix laminate can be considered as an electrical network, it can then be view and used as a sensor for following the material state during the manufacturing process enabling thus defects to be detected and this without any additional sensing material or device

Screening for herbicide resistance in black-grass (Alopecurus myosuroides): A "ring" test

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