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31.
Comparison of oil and egg tempera paint systems using time-of-flight secondary ion mass spectrometry
Zachary E. Voras Kristin deGhetaldi Brian Baade Eric Gordon Glenn Gates Thomas P. Beebe 《文物保护研究》2016,61(4):222-235
Time-of-flight secondary ion mass spectrometry (ToF-SIMS) is quickly becoming a critical tool in the field of art conservation. This technique provides high-resolution spatial maps of both inorganic and organic components located within cross-sectional samples collected from works of art. With recent advances in surface analysis, ToF-SIMS can now be used to identify specific amino acids present in protein-containing materials as well as fatty acids in drying oils. For example, the detection of the ion fragment associated with the amino acid hydroxyproline can be used to confirm the use of animal glue in a paint sample. As an analytical technique, ToF-SIMS avoids the need for derivatization/silylation reagents, with no interference by the presence of pigments. Furthermore, the layered systems that are often encountered in historical paint samples remain intact throughout the analytical procedure. This allows for the co-localization of organic and inorganic species in specific layers (e.g. egg yolk paint atop a glue ground). Because of this ability to localize the analytical signal to approximately 6?µm or less, the mass spectral information can be used to produce mass-resolved and spatially-resolve images which can be correlated to previous studies of the same samples. In this study, ToF-SIMS was used to analyze a paint cross section obtained from a painting attributed to Raphael, and another from a painting by the Sienese artist Matteo di Giovanni. 相似文献
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Sheila C. Gordon Benjamin Arenstein 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》2017,63(2):169-195
With societal changes rapidly transforming cultures that had been largely homogenous, today’s multi-cultural – and in particular interfaith – families need new educational strategies to help them understand their cultural roots and identify and clarify what aspects of their heritages they wish to nurture and transmit to their children. This paper focuses on a new model for religious education, namely non-doctrinaire “dual-faith” education, which the principal author has helped to develop in the United States (US) through the Interfaith Community (IFC), a small, independent non-profit organisation created and led by dual-faith Jewish/Christian families. The model is premised on the notion that families can have two different faiths in one household and that – with respect and education – families can be harmonious, religion can be transmitted, and tolerance broadly nurtured. While the model is particular to the US and to families with Jewish and Christian heritages, its premises and structure have significant potential to be adaptable to other religious combinations and other cultures and countries. After reviewing relevant literature and situating the IFC model in the global and US contexts, the paper sets out to clarify the importance of the concept, describe its elements, and discuss its implications for religious education in this time of changing ethos and demography. 相似文献
34.
Glenn A. Phillips Yvonna S. Lincoln 《International journal of qualitative studies in education》2017,30(7):656-668
Research on student veterans is in an infant state. As veterans continue to enroll in institutions of higher education, researchers must explore new ways of knowing student veterans. It is not enough to only describe and model this growing demographic, researchers must also have a tool for criticism and question. The next in an important tradition of emancipatory paradigms, this article suggests a critical theory built on current critical conversations but adapted for the unique characteristics of the student veteran. The article defines the need for a critical theory (Veteran Critical Theory), explains 11 tenets for this new theory, and discusses how these tenets could be used by administrators, faculty, student affairs professionals, and students in the higher education community. 相似文献
35.
Michelle M. Neumann Glenn Finger David L. Neumann 《Early Childhood Education Journal》2017,45(4):471-479
As we progress in the 21st century, children learn to become proficient readers and writers of both digital and non-digital texts. Knowledge, skills, and understandings of literacy emerge through sociocultural interactions with non-digital tools (e.g., paper-printed books) and digital tools (e.g., touch screen tablets). However, debate is ongoing over the role that digital experiences play in emergent literacy development. Researchers have voiced the need to conceptualise a common framework for literacy development that considers the emergence of digital literacy skills alongside conventional literacy skills and how these skills might interact during development. This is particularly important in light of the increasing use of digital texts used by young children, such as E-books and digital games. Therefore, this paper proposes a framework that might guide research and practice by examining the relationships between emergent literacy skills, emergent digital literacy skills, and proficiency in reading and writing. 相似文献
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Campbell Laurie O. Howard Cassandra Lambie Glenn W. Gao Xueying 《Education and Information Technologies》2022,27(6):8147-8163
Education and Information Technologies - Reading in upper-elementary grades includes comprehending complex texts and learning disciplinary-specific vocabulary. This study aims to determine the... 相似文献
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Gillean McCluskey Sheila Riddell Elisabet Weedon 《International Journal of Inclusive Education》2015,19(6):595-607
This paper examines findings from a recent study in Wales of school exclusion and alternative educational provision. Many, but not all, children in alternative provision have been excluded from school. The most recent statistics reveal that nearly 90% of pupils in alternative provision have special educational needs, nearly 70% are entitled to free school meals (free school meal entitlement is often used as a proxy indicator for poverty in the UK) and three quarters are boys (Welsh Government. 2012a. Pupils Educated Other than at School, 2011/12. Cardiff: Welsh Government). The paper focuses on analysis of findings about young people's experiences of exclusion and alternative provision, and how these experiences may be contextualised within a discussion of children's rights. This analysis suggests that young people's experience is highly variable; that inappropriate curricula are still common, pastoral support uneven and that few opportunities exist for success or re-integration. In the most disturbing examples, young people were found to have experienced physical restraint and the use of isolation as punishment. The paper concludes, therefore, with a proposal for change aimed at ensuring that children's rights are placed at the heart of educational experience in practice as well as policy. 相似文献