首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   78篇
  免费   3篇
  2023年   1篇
  2022年   1篇
  2021年   2篇
  2020年   4篇
  2019年   3篇
  2018年   5篇
  2017年   4篇
  2016年   2篇
  2015年   6篇
  2014年   1篇
  2013年   23篇
  2012年   7篇
  2011年   4篇
  2010年   2篇
  2009年   1篇
  2008年   3篇
  2007年   5篇
  2006年   1篇
  2005年   1篇
  2004年   1篇
  2002年   1篇
  2000年   2篇
  1996年   1篇
排序方式: 共有81条查询结果,搜索用时 15 毫秒
31.
This article reviews research on the lives and experiences of children and young people living in rural Minority world environments. The literature reviewed has focused on constructions of rurality in relation to children's experiences, most notably the rural idyll. Alternative constructions of rural childhood, characterised by dullness, horror and deprivation, are also apparent, and associated with insufficient rural activities, resources and transport, marginalisation and social exclusion. The more recent inclusion of children's perspectives on rural living provides a deeper understanding of rural childhood and challenges the dominant perspectives.  相似文献   
32.
Some acetone-carried consolidants for waterlogged archaeological wood were tested in order to evaluate treatments able to save time and energy. In details, colophony (rosin), two esterified colophonies (Rosin 100® and Rosin 459®), a mixture of colophony with PEG 3400 and a vinyl acetate - vinyl versate copolymer (Vinavil 8020S®) were tested. The treatments were carried out at temperatures of 20 and 35 °C on waterlogged maritime pine, elm, oak and beech. The materials came from the archaeological site of the ancient ships of Pisa (Tuscany, Italy) and were dated back to VII cent. BC – II cent. AD. To evaluate the processes, equilibrium moisture content and dimensional stability of treated wood samples at different relative humidity, and retention of impregnating products were measured; moreover macroscopic and microscopic examination were also run to respectively assess the shape and appearance of treated wood and the way of deposition of consolidants. The results highlighted that natural and modified colophony treatments gave the most satisfactory results both in the maintenance of shape and dimensions of samples and in the stabilization with respect to RH variations. Moreover, the equilibrium moisture contents of samples treated with R100 and R459 were much reduced in comparison to the other consolidants and to untreated archaeological wood. This fact was related to the high retention values of those products that occluded most of the porosity including the microporosity of cell walls. Therefore, in terms of higroscopicity treated wood was more similar to impregnating substances rather than to decayed wood. This fact was considered helpful in contrasting the moisture-related negative effects in cases of eventual faults in the climate control during e.g. exhibition and in protecting treated wood from the risks of new fungal attacks.  相似文献   
33.
Journal of Archaeological Research - The Late Bronze Age (1700–900 BC) represents an extremely dynamic period for Mediterranean Europe. Here, we provide a comparative survey of the...  相似文献   
34.
Ground-Based Synthetic Aperture Radar Interferometry (GBInSAR) and Terrestrial Laser Scanning (TLS) were purposely integrated to obtain 3D interferometric radar point clouds to facilitate the spatial interpretation of displacements affecting archaeological monuments. The paper describes the procedure to implement this integrated approach in the real-world situations of surveillance of archaeological and built heritage. Targeted tests were carried out on the case study of the Domus Tiberiana sited along the northern side of the Palatino Hill in the central archaeological area of Rome, Italy, and displacements of the monument were monitored over almost one year of acquisition. The GBInSAR – TLS integration provided updated information about the condition of the archaeological structures in relation to their history of instability mechanisms, and did not highlighted a general worsening for the stability of the entire monument. Point-wise and prompt detection of displacement anomalies and/or sudden changes in displacement trends proved the suitability of the method to support early warning procedures, also to evaluate effects on the masonry due to human activities.  相似文献   
35.
This paper gives prominence to children's own accounts of school journeys. The characteristics of school journeys in Fife, Scotland are outlined, and the nature of children's school journey experiences discussed. The focus is on children in the latter years of primary school, concentrating mainly on the experiences of those who walk without adult accompaniment on their school journeys. By drawing attention to the meaning of these journeys to children this paper brings to the fore children's active and imaginative engagements in and with their environments. This situates school journeys as an integral part of children's geographies indicative of the regulation of the child's realm and the active part which children play in redefining this.  相似文献   
36.
The capability of satellite QuickBird imagery for the identification of archaeological crop marks is herein presented and discussed for two test sites located in the South of Italy. The selected sites, dating back to Middle Ages, were buried under surfaces covered by herbaceous plants characterized by a different phenological status (dry/green) when the satellite data were acquired.  相似文献   
37.
There is general agreement that geographical information systems (GIS) have a place within the geography classroom; they offer the potential to support geographical learning, exploring real-world problems through student-centred learning, and developing spatial thinking. Despite this, teachers often avoid engaging with GIS and research suggests that the lack of GIS training in initial teacher education is partially to blame. In response to this, this article explores how 16 trainee geography teachers were supported to develop their use of GIS across a one-year, postgraduate teacher training course in England. The project, an interpretive case study underpinned by a constructivist epistemology, used questionnaires and interviews to elicit trainees’ understandings of the nature of GIS, and to explore their engagement with it across their training year. Results suggest a programme of embedded training developed in trainees a more nuanced understanding of the value of GIS for supporting geographical learning and, thereby, increased self-efficacy towards and engagement with it in their teaching practice. However, not all trainees embraced GIS as a pedagogical tool and the study raised several key issues for geography teacher education, including the knowledge culture within schools in the teacher training partnership, and the importance of trainee self-efficacy towards GIS.  相似文献   
38.
This paper deals with 'real services' to manufacturing companies, nowadays an integral part of the toolbox of industrial policies in all advanced countries, both at regional level and within major nationwide programmes. Policy relevance is indeed the main criterion to identify concretely those services, based on their capacity to trigger learning processes and to have positive 'externalities of consumption'. The paper discusses the main problems concerning the management and evaluation of real services and outlines the key issues for the policy agenda (selection, coordination and networking; the transfer of success models; the practice of subsidiarity between different levels of government). The paper concludes by arguing the undiminished relevance of real services for contemporary industrial policies, notwithstanding the growing awareness of their limited impact.  相似文献   
39.
This case study of fatherhood in early nineteenth-century England examines the conflict between a wealthy East India Company merchant and his increasingly wayward adolescent son, who was transported to Australia in 1814. It argues that fatherhood was often necessarily a reactionary process, that did not conform to a static, historically specific model of ideal or dysfunctional fatherhood. It also traces the origins of much of the disagreement to conflicting ideals of masculinity between father and son, which were exacerbated by their rise in wealth and social status. Since both aspired to the elite status of gentleman, the article demonstrates that competing and compatible ideals can co-exist within different generations of the same family. Thus a study of male family experience suggests that hegemonic masculinity is subject to short-term shifts of emphasis on those values adopted by men of different ages and social status.  相似文献   
40.
This article examines evidence of self‐determination and independent action in the practice, among a significant group of late medieval English women, of donating their own clothing and household linens to parish churches for use in sacred ritual.
The argument is presented that clothworking in a domestic environment was a highly valorised activity closely connected with women, for which the spindle and distaff acted as an index, and that against this background women used textiles as a site for expressing their personal, social and religious concerns.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号