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Christopher J. McNamara Margaret Breuker Marie Helms Thomas D. Perry Ralph Mitchell 《Journal of Cultural Heritage》2004,5(4):361-364
Outdoor bronze sculptures are highly susceptible to corrosion in many environments and organic coatings are widely used for their protection. The purpose of this study was to determine the susceptibility of the commonly used coating Incralac to biodeterioration by microorganisms. A yeast was isolated from a bronze statue treated with Incralac and its ability to degrade Incralac was determined using growth curves, scanning electron microscopy (SEM), and electrochemical impedance spectroscopy (EIS). The organism grew slowly on Incralac in liquid culture, but SEM images demonstrated its ability to adhere to Incralac coated metal. Additionally, the yeast caused a rapid drop in the low frequency impedance of Incralac coated metal that was not observed under sterile conditions, indicating that the organism accelerated deterioration of the coating. The potential for microbial growth to accelerate deterioration of Incralac should be considered when developing a maintenance strategy for the protection of outdoor metal monuments. 相似文献
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Margaret Mackey 《English in Education》2002,36(2):31-39
Literate behaviours are changing with new technological and commercial reworkings of popular fictions. Today's young people are acquiring new skills and strategies to deal with the enormous onslaught of secondary texts associated with many major fictions. This article discusses such developments in the context of three stories: Harry Potter, The Lord of the Rings and The Simpsons. It investigates the potential for new approaches to literacy as displayed by particular young readers. 相似文献
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Understanding the Researcher Identity Development of Counselor Education and Supervision Doctoral Students 
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下载免费PDF全文 Counselor education and supervision (CES) doctoral students play an important role in contributing to knowledge in the counseling profession. CES doctoral students were interviewed to explore their researcher identity, a unique self‐concept that possibly includes research self‐efficacy and interest. Issues critical to facilitating researcher identity development included confidence, the researcher voice, faculty support, and opportunities for research. 相似文献
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