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   145篇
  免费   2篇
  2020年   2篇
  2019年   7篇
  2018年   4篇
  2017年   4篇
  2016年   9篇
  2015年   4篇
  2014年   1篇
  2013年   37篇
  2012年   5篇
  2011年   8篇
  2010年   9篇
  2009年   9篇
  2008年   8篇
  2007年   4篇
  2006年   6篇
  2005年   3篇
  2004年   1篇
  2002年   5篇
  2001年   5篇
  2000年   3篇
  1998年   2篇
  1995年   2篇
  1994年   2篇
  1985年   1篇
  1984年   2篇
  1983年   2篇
  1980年   1篇
  1978年   1篇
排序方式: 共有147条查询结果,搜索用时 15 毫秒
71.
72.
73.
Expectations for survival of vertebrate remains have been well developed and intensely studied in the zooarchaeological taphonomic literature. Taphonomic studies of shellfish remains focus on marine species and on variables relevant to remains from paleontological contexts (e.g., fossil marine beds). In this paper we develop a conceptual framework from which to derive expectations concerning the preservation of freshwater mussel remains focusing on two parameters, shell microstructure and shell shape. Shell size does not influence survivorship. Our model is validated through application to late Holocene zooarchaeological mussel assemblages from north Texas. Taphonomically robust species are important regarding zooarchaeological and biogeographic interpretations based on mussel paleofaunas, and fragile species are important indicators of whether or not an assemblage is well preserved.  相似文献   
74.
Extraction of protein residues from archaeological matrices, such as pottery clay, lithics, and grinding stones, has proven to be methodologically challenging. Protein residue analysis is fraught with technical challenges in analytical chemistry. In cooking pottery, protein residues are thought to bind to clay surfaces in vessel walls through a variety of primarily non-covalent interactions. Removal of protein residues requires the disruption of these interactions, and a diverse set of tools has been proposed and applied. Here, we test extraction procedures through varying combinations of physical parameters and solvents to derive an optimal approach yielding efficiencies of recovery from experimental pottery above 60%. The utility of our extraction approach was further validated through liquid chromatography?Cmass spectrometry analysis of experimental residues. We have identified several hurdles to developing a successful study of protein residues from pottery, each of which is surmountable with additional method development in the realm of archaeological chemistry.  相似文献   
75.
Heritage sites regarded as important are safely managed by the state, voluntary or private sectors but the majority of sites, despite statutory protection, remain unrecognised and without a role in their host communities. New schemes such as the Local Heritage Initiative in the UK aim to encourage communities to recognise their heritage assets and in managing them effectively to contribute to their preservation. With reference to the case of Nether Poppleton near York (UK), the present study explores the factors and conditions for effective community management displayed in one locality by groups who are successfully conserving and managing a diverse set of local heritage sites. Interviews and joint tasks enabled an analysis of the complex range of factors and conditions that can lead to a successful community-based initiative. Future research will determine the extent to which these factors, if applied to other sites, might produce the same results. The importance of this agenda is underscored by the increasing reliance on community-based heritage management in the UK and elsewhere.  相似文献   
76.
77.
Heritage theory has developed piecemeal over the last 30?years, with little progress made in fully understanding the way the subject can or should be theorised. This paper identifies some of the main sources of theory in heritage, as well as the approaches and perspectives that have been formulated as a result. These are framed on the basis of their disciplinary origins and can be viewed as theories in, theories of and theories for heritage. As frames through which heritage can currently be examined they are still employed in relative isolation from each other and we suggest, therefore, a way by which they might be considered as complementary, rather than competing approaches in order to provide impetus for the development of a critical imagination in heritage studies.  相似文献   
78.
The entrenchment of neoliberalism in the United States has coincided with an unprecedented expansion of punishment practices that intensify social divisions rooted in class and race. We explore the political culture of this hyperpunitiveness through a discussion of two popularized explanations for urban crime: broken windows and situational crime prevention. These popular criminological theories help legitimate the deepening of social and spatial divisions. They also rest their precepts upon the foundation of a particular geographic imagination. We use this paper to reveal and critique the core assumptions about space upon which each of these theories critically relies. We suggest that each theory understands society–space interactions too simplistically to provide comprehensive insight into the dynamics of landscape construction and interpretation. We argue further that the logics and practices of broken windows and situational crime prevention possess significant elective affinities with social dynamics characteristic of neoliberalism. For these reasons, these popularized criminologies both reflect and reinforce the processes through which neoliberalism exacerbates social differences.  相似文献   
79.
EDITORIAL     
  相似文献   
80.
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