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111.
The Powerhouse Museum in Sydney, Australia houses the world's most significant and comprehensive collection of Speedo swimwear and accessories. The museum has identified a problem with the long-term storage of certain Spandex/Lycra® items where the elastane fibre has degraded leading to oil formation. Attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR) determined that most of these garments were manufactured using nylon-elastane fibres, and the elastane component comprises polyetherurethane or polyesterurethane polymers. Certain polyesterurethanes are known to be vulnerable to hydrolysis, and this was confirmed for a subset of the collection using two chemical testing protocols, and a thermal testing protocol that reproduced the oil formation. A polyetherurethane garment in the collection was unchanged by these tests. The oil from the thermal testing was confirmed as a breakdown product of the polyester component of the elastane fibre, using ATR-FTIR spectroscopy, X-ray photoelectron spectroscopy, and time-of-flight secondary ion mass spectrometry. The study demonstrates the value of ATR-FTIR for minimally invasive identification of elastane fabrics that may require specialized storage in a humidity-controlled environment. 相似文献
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An examination is reported of the effect of differences in reading strategies on the construction of meaning from novel length text. Following a brief review of psychological theory relevant to the question of how particular strategies could constrain meaning construction, specific differences are hypothesised in relation to Orwell's classic tale, Animal Farm. The results of an experimental examination using post‐graduate Diploma in Education students as subjects, and multidimensional scaling as the analytic technique, support the contention that reading strategies are important in the construction of differential meanings. The educational implications of the results are discussed in relation to the change in school practice from teacher‐directed reading to students reading more books but on their own or in small groups, without direct teacher intervention. 相似文献
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Shaping the professional landscape through research,advocacy and education – an Australian perspective 下载免费PDF全文
Gemma Siemensma Ann Ritchie Suzanne Lewis 《Health information and libraries journal》2017,34(2):171-176
This article is the first in a new series in this regular feature. The intention of the series is to look at important global developments in health science libraries. Librarians will be invited to share with HILJ readers key initiatives in their country or region. These articles should serve as a road map, describing the key changes in the field and exploring factors driving these changes. We initiate this series with an article by three Australian librarians who use research findings to depict the evolving professional landscape in their country. The starting point of their analysis is a report completed in 2011 which looked into likely future workforce and education requirements for health library professionals. The authors trace the achievements since then, most notably in the areas of research, advocacy and education. Clearly, a great deal has been achieved leading to a greater return on investment. The authors maintain that the key to shaping the profession and enhancing the status of librarians is ongoing professional development. To this end, Australia is promoting a systematic, competency based health specialist certification. Finally, they identify trends impacting on health librarianship, such as the growing importance of research data management and consumer health literacy. JM 相似文献
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Abstract Most professional development schools emphasize the benefits to preservice teacher preparation but rarely focus on the professional development opportunities for the practicing, experienced teachers at the site (Clark, 1999). Professional development schools are not only changing the way preservice teachers are prepared, but are drastically changing the roles of the experienced teachers who participate in the process. By telling their stories of involvement in a growing and changing professional development school, experienced teachers can reflect on their experiences and learn new and different lessons from them each time. Recorded stories of participants in professional development schools can be used to help teachers gain renewed insights into their potential as leaders in school reform. Storytelling, as a strategy for connecting theory to practice in real school settings, allows and encourages teachers to be active participants in creating progress. It acts as a catalyst for generating and clarifying personal and common visions. 相似文献
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The increasing size of most universities in the United States at times has led to efforts to counteract largeness by creating many small units within the larger one. The following study reports on a pilot study to evaluate the effectiveness of a grouping pattern in which freshman students had their class schedules arranged in such a way as to have at least three sections (courses) in common with others in their respective group. 相似文献
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Suzanne K. Damarin 《Gender and education》2000,12(1):69-85
Most literature on gender and mathematics is based on assumptions that the value of mathematical accomplishment is unquestionable and wholly good, and that any failures of women to achieve in mathematics are due to problems within her or the larger society, problems which should and can be resolved. This article argues that the situation is not so simple. Drawing on literatures of sociology, cultural studies, and education (among others), the article sets forth characteristics shared by 'marked categories' of persons as deviant. Drawing evidence from a wide range of sources, it is then argued that 'the mathematically able' share these characteristics and can therefore be considered as a marked category. Moreover, women in mathematics are doubly marked (as women and as mathematical), making their position doubly difficult socially. There are thus two discourses of mathematics in Western society, a discourse of power and a discourse of deviance. Drawing on the practices of other marked categories, I make a few recommendations for educators based on the analysis. 相似文献