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71.
Desalination is a relatively new intervention in the field of conservation of architectural heritage. Especially the desalination of immovable objects, such as masonry structures, is still a trial-error practice. In the field, different desalination materials and methods are used, sometimes with unsatisfactory results. Better understanding of the desalination process is needed in order to support the conservator with clear guidelines for choosing a suitable desalination material and method. The research presented in this paper constitutes the first step towards the development of a modular system of poultices, which can be adapted, i.e. fine-tuned to different types of substrates. Starting point is to make use of advection, i.e. the transport of salt ions with water flow. This transport mechanism is faster than diffusion and the application on immovable objects is relatively easy. In order to optimize salt extraction, a poultice working by advection should have smaller pores than the substrate. Starting from this principle the pore sizes of different desalination materials (sand, cellulose, kaolin and bentonite) mixed in different proportions, have been measured. Interesting results were obtained, showing that the desalination materials commonly used in the field are often not the most suitable ones. On the basis of the results, recipes for poultices, adapted to a specific substrate, can be formulated. 相似文献
72.
Results of the Vocabulary, Reading Comprehension, and Mathematics Concepts subtests for third-, sixth-, and eighth-grade students who took Form 5 of the Iowa Tests of Basic Skills in the 1976 school year were analyzed for sex bias. Statistical significance was found for each subtest for all of the grade levels. Follow-up analyses considered skill classification, sex-stereotypicalness, and item location of the items contributing to the statistical significance. No trends for these factors were found within each grade level for the four subtests considered. For all subtests, fewer items are identified at the third-grade level than for sixth or eighth grade, and these items, in general, favored boys. For the older students, when items are found to function differently for boys and girls, nearly half favor each sex. On the whole, little evidence for sex bias was found for the four subtests and three grade levels examined. 相似文献
73.
A sample of 63 gifted elementary-school students was administered the Bender Visual-Motor Gestalt Test and the Developmental Test of Visual-Motor Integration for comparative purposes and to test Koppitz hypothesis that gifted students have advanced visual-motor development. Group results revealed no significant differences between the two tests, that they did correlate significantly, and that younger students in particular had advanced visual-motor development when tested using these two tools. 相似文献
74.
75.
Barbara Ann Cole 《欧洲特需教育杂志》2013,28(3):287-307
This paper considers the role of the Special Educational Needs Coordinator (SENCO), the teacher responsible for the implementation of policies relating to the teaching and learning of children with special educational needs (SEN) in mainstream schools in England and Wales. SENCOs also have a role to play in the inclusion of children with learning difficulties/disabilities in mainstream schools. Yet research indicates that despite the revision of the Special Educational Needs Code of Practice in 2001, many SENCOs are still overwhelmed by the operational nature of the role with little support, time or funding to consider more strategic aspects of inclusion and SEN. The article draws on research by the author and offers the voices of SENCOs from two unitary authorities in the north of England which suggest that where the SENCO is supported by senior management within the school, the role can be a powerful one in relation to inclusion. It concludes by arguing that the role of the SENCO needs to be re‐conceptualized, redefined and remunerated as a senior management post within mainstream schools. If this were to be enforced by national policy, every mainstream school could have at least one powerful advocate for the inclusion of children with learning difficulties/disabilities. 相似文献
76.
Abstract The Florida Teletraining Project tested the feasibility of using community colleges as providers of various types of military training to personnel in the Reserve Components (RC). Training was delivered via the Army's TNET system, which employs two‐way interactive video. Five courses were produced, delivered, and evaluated during the project. Results showed that effective military course reconfiguration can be accomplished by civilian institutions, that the delivery system was technically reliable, that students performed well using specially reconfigured courseware, and that students rated the video teletraining approach as effective. The project demonstrated the potential of two‐way video teletraining for a variety of military training applications for several different levels of military personnel. 相似文献
77.
Clinton E. Miller Barbara K. Mullins 《International Journal of Lifelong Education》2013,32(5):474-484
The purpose of this paper is to identify domestic violence as a social problem, provide background information concerning domestic violence, identify strategies related to adult education currently being used to address the problem of domestic violence and examine the philosophical underpinnings of the programmes. Domestic violence is not only a legal problem, but represents a substantial public health issue and is one of the most overlooked social problems of today. As a result of increased public awareness concerning domestic violence in the late 1980s, there have been many changes in laws and training. Educational programmes have been established for both offenders and public officials who may come in contact with the victims. These programmes range from those based on behaviourist philosophy to those on humanist philosophy and are offered by the courts, community agencies, health care providers and in the workplace. Programmes to reduce domestic violence and efforts of multiple social institutions illustrate the use of adult education as a catalyst for social change. 相似文献
78.
Jonathan Long suggests that current interpretations of values education are dominated by a number of ideas that appear to make attempts to achieve clarity and consensus extremely difficult. He argues that ‘essential to the successful development and promotion of values in a secular state educational system is a shifting of emphasis which enables us to see the context as an opportunity rather than a problem’. He goes on to suggest that schools should focus on what he describes as the ‘roots’ of values. In his view, these roots involve the questions ‘What is it to be human?’ and ‘What counts as human flourishing?’. Thus, schools must engage with issues of identity and direction. 相似文献
79.
80.