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1.
A multi-analytical approach for the study of brazilwood and its lake pigments was carried out based on historically accurate reconstructions. Recipes for brazilwood lakes from the fifteenth century technical text Livro de como se fazem as cores and the Winsor & Newton nineteenth century colourman's archive were reproduced and compared. Both primary sources allowed for the successful preparation of brazilwood lake pigments with colours that vary from light pink to dark red. The main steps and ingredients for the manufacture of these pigments were common in both sources, particularly the addition of Al3+ in the form of alum, and calcium carbonate (chalk). Reconstructions revealed that the latter acts as a pH buffer and filler, controlling the pH at which the lake pigment precipitates. The main difference between the two sources is that the nineteenth century recipes give the quantities for all ingredients, the precise temperatures and time, and achieved higher relative pigment yields (75% versus 45%). Full chemical characterisation of the reconstructions provided detailed information on the individual steps in the pigment manufacture and revealed that the presence of calcium sulphate dihydrate (gypsum) in the final pigment was a result of its formation in situ. Infrared, reflectance, and fluorescence spectroscopy proved to be essential and complementary techniques: while infrared was used to characterise additives and binders, reflectance and fluorescence data were fundamental for identifying the chromophore. The pigments and paints produced can now be used as standards for the identification and investigation of brazilwood lake pigments found in artworks. 相似文献
2.
In 2013, The Better Image (TBI) was contacted to examine A Play of Selves, a unique work created by artist Cindy Sherman during her graduate studies in 1975. The work is composed of 244 paper doll-like photographs of Sherman that are presented within 72 frames. During initial condition checks, it was noted that a number of individual elements had begun to show signs of chemical staining. Over the course of 2013/2014, a collaborative response was developed with the help of the artist, the artist's printer, the representing gallery, TBI staff and the owner. The main goal was to address the physical and chemical issues present and preserve this work for future exhibition and study. Determining an effective decision- making model based on a hierarchy of values was crucial before undertaking any conservation treatment, as there were several invested parties, each with a different perspective. The focus of this paper is the interplay of our responsibilities as conservators with the concerns of the artist, her gallery, her printer, and the owner to balance aesthetic vs. physical integrity of the artwork, reversibility of treatments, importance of record keeping while developing a balanced response within a world of rapidly disappearing traditional photographic papers. 相似文献
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Janice T. Gibson Marvin J. Westwood F. Ishu Ishiyama William A. Borgen Susan M. Showalter Qasem Al-Sarraf Semiha A. Atakan Isaura R. F. Guimares A. Lina Guisti-Ortiz Margaret Robertson Benjamin Shafrir Peter De Weerdt Gundelina A. Velazco Carol E. Baker Maria Dikaiou Tatiana Gabay Lina Kashyup Ilona Lee Maria E. Felce Di Paula Hillman Ngunangwa Nina F. Talyzina 《International journal for the advancement of counseling》1991,14(3):203-216
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Sophia Rodriguez 《The Urban Review》2017,49(4):529-550
This article documents minority youth sense-making around the concept of diversity and the founding of a youth activist group that seeks spaces for policy thinking and protesting against racial inequalities in selective enrollment schools. Utilizing the sociological theory of racial formation and the concept of racial projects (Omi and Winant in Racial formation in the United States, 3rd edn, Routledge, New York, 2014), this article draws on data from a critical ethnography. The author argues that youth activists offer a critical perspective for researchers and policy-makers in the face of neoliberal school choice policy. Findings reveal that youth activists understand a lack of diversity as racial imbalance in high status schools, and that they expose structural inequalities that are embedded in policy structures and processes such as selective enrollment high schools. Implications are discussed to show how re-conceptualizing policy as a racial formation can bring structural and institutional racist practices into view in hopes of transforming district policies to offer access to high quality schools for all students. 相似文献
6.
Catholic schools have become a popular choice for many low income families Latino/a families. Families enrollment in these schools are often faced with the mandate to participate. However, regardless of the mandate, some schools often experience low parental participation. The purpose of this study is to document the experiences of low income, Latino/a families around parental involvement in hopes of understanding the reasoning for participating (or not) in their child’s school. The researchers conclude that families do not participate for a number of reasons including lack of opportunities, and an unwelcoming environment. The implications for Latina/o urban education are discussed. 相似文献
7.
全球化是否有助于教育公平? 总被引:3,自引:0,他引:3
自20世纪末迄今,全球化在资本主义沃土的滋润下,已经蔚为世界的潮流。全球化一方面有现代性的特质,另一方面,也呈现后现代思潮的特征。教育在此全球化的不同样貌中,必须认清现代与后现代思潮的利弊得失,并批判地融合两者,方能确保教育公平和社会正义。从现代和后现代思维,厘清与批判全球化的趋势和内涵,并透过分析、诠释与批判方法,为教育在全球化趋势下,找到一条有助于促进教育迈向公平和正义的方向。 相似文献
8.
Tatiana Sergeevna Komashinskaia Grigorii Petrovich Tsurkan 《Religious education (Chicago, Ill.)》2019,114(1):42-56
This article considers the high significance of the Russian Orthodox Church’s system of religious education, which is currently being built in the Russian Federation. The great value of this system is due to the fact that Orthodoxy has historically been the most massive and important religion in Russia. Sunday schools are examined as a form of religious Orthodox educating and upbringing. The article defines the specifics of the emergence and historical development of Sunday schools in Russia on the whole and in the Far East in particular. It also discusses the role that modern Sunday schools play for children and adults in Orthodox moral education and spiritual guidance, in preserving Orthodox traditions, and in forming ethical values. The study examines the historical building and modern development of Vladivostok Eparchy. One of the Sunday schools belonging to Vladivostok Eparchy of the Russian Orthodox Church is taken as an example to describe how religious education and raising in Orthodox traditions are organized for children today. 相似文献
9.
This paper explores how mature female flight attendants [FAs] use Selection, Optimization and Compensation [SOC] strategies to cope with age-related diminishing resources at work. The role of FAs is an age-sensitive occupation, and in some organizations, women are under constant pressure to look young and attractive. This Interpretative Phenomenological Analysis study aims to add depth and nuance to our understanding of SOC strategies qualitatively; most published studies are quantitative. A homogenous sample of 5 mature single Filipina FAs, foreign workers employed by Arabian Gulf-based airlines, were interviewed through a semi-structured protocol. Recruitment was through a snowball process. The study found that FAs use SOC strategies to compensate for age-related decline. Off-duty, their focus is directed to activities that help them to meet the organizations’ expectations of youthful appearance and productivity. To achieve this, resources from other life domains are diverted, which leads to negative outcomes from focusing SOC strategies on only one aspect of life. Despite negative personal implications and concerns about the future, the participants still felt attached to their work identities. This shows the importance of understanding the use of SOC strategies within and across life domains, as well as their implications for career sustainability and workability. The use of such strategies at work when detrimental to other life roles is unsustainable. The findings highlight the importance of conducting more qualitative studies on SOC behaviors of specific groups, so the experiences of aging at work can be explored in more depth, allowing areas of concern to be identified. 相似文献
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