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   144篇
  免费   7篇
  2023年   1篇
  2021年   1篇
  2020年   1篇
  2019年   5篇
  2018年   5篇
  2017年   7篇
  2016年   7篇
  2015年   7篇
  2014年   5篇
  2013年   44篇
  2012年   2篇
  2011年   6篇
  2010年   7篇
  2009年   3篇
  2008年   2篇
  2007年   2篇
  2006年   3篇
  2005年   1篇
  2004年   2篇
  2003年   1篇
  2002年   3篇
  2001年   2篇
  2000年   2篇
  1997年   3篇
  1996年   1篇
  1995年   2篇
  1994年   2篇
  1991年   1篇
  1990年   1篇
  1987年   1篇
  1986年   1篇
  1985年   1篇
  1984年   1篇
  1983年   2篇
  1982年   1篇
  1980年   1篇
  1979年   2篇
  1977年   2篇
  1976年   2篇
  1975年   1篇
  1969年   2篇
  1967年   2篇
  1954年   1篇
  1952年   1篇
  1947年   1篇
排序方式: 共有151条查询结果,搜索用时 15 毫秒
101.
102.
Stories of priests being hunted down and murdered at Mass Rocks by priest-catchers and soldiers during the Penal era in Ireland persist to the present day. Using a tripartite taxonomy of memory, this article explores the reasons why these images continue to dominate and reflect the persecuted nature of Catholicism.  相似文献   
103.
Palaeomagnetic and geochemical studies of Cambrian–Ordovician serpentinite in the Highland Border Complex (HBC), a tectonic terrane along the Highland Boundary Fault (HBF) in Scotland, indicate that the HBF was a conduit for fluids in the Carboniferous–Permian. The fluids caused dolomitization, silicification, and haematite authigenesis. Both red dolomitized serpentinite and relatively unaltered serpentinite were sampled at multiple localities. The unaltered serpentinite contains a poorly defined magnetization with westerly declinations that resides in magnetite and has a pole which plots well off the apparent polar wander path. Most specimens of the red dolomitized serpentinite contain a magnetization with southerly declinations and negative inclinations that resides in haematite. A regional fold test suggests that this magnetization post‐dates tilting and the pole positions for the different locations fall on the Carboniferous to Permian part of the apparent polar wander path. In some specimens of red dolomitized serpentinite, alternating field (AF) demagnetization prior to thermal treatment removes a component with a similar direction. Dolomitized basement rocks along the fault contain a similar although apparently slightly older magnetization. Fluid inclusion and geochemical studies indicate that the fluids were hydrothermal in origin (110–240°C) and had a range of sources. The Carboniferous–Permian magnetization in haematite is interpreted as a chemical remanent magnetization that formed when warm fluids moved along the fault zone and caused haematite authigenesis. The component removed by AF treatment is interpreted as a thermal resetting of primary magnetite by the fluids. The variability of the palaeomagnetic, fluid inclusion, and stable isotope results suggests that there were probably multiple flow events that caused the alteration. The origin of the fluids could be related to the intrusion of late Carboniferous dikes in central Scotland and/or to reactivation of the HBF in the Carboniferous–Permian.  相似文献   
104.
To contribute to creation of a model for the initial steps in monumental construction in Formative period Mesoamerica (ca. 1100–700 B.C.), this article employs concepts from theories of structuration. It treats evidence of differential durability of construction materials as sources of insight on possible intended and unintended consequences of the construction of earthen platforms by the generations of people who lived through these new construction projects. It explores the changes in spatiality, connection to place, and materialization of time at multiple scales that these construction projects produced.  相似文献   
105.
106.
A division of responsibility for parish church fabric and contents between rector and parishioners first appeared in English ecclesiastical legislation in the early thirteenth century and was to remain in place until the mid-nineteenth century. It is often suggested that this responsibility was forced onto parishioners by a clergy keen to limit their own financial liability and that this marks the point at which parishioners first become involved in their local churches. This article looks at the development of these statutes from their origins in the Anglo-Saxon period through to their full realisation in the later thirteenth century. It argues that there were many among the thirteenth-century ecclesiastical hierarchy who were opposed to this change, and that far from being forced on parishioners, allowing parishioners to take responsibility for part of the church was a pragmatic solution to problems brought about by changes to both parishes and parish churches.  相似文献   
107.
Xeropolis is a tell site on the island of Euboea, Greece just to the east of the village of Lefkandi, and was occupied from the Early Bronze Age to the Early Iron Age. Excavations in recent years have provided an opportunity to investigate site formation processes using geoarchaeological and geochemical techniques. Sediments derived from the tell on the southern side have been lost by coastal erosion whilst those on the north mantle the flanking slope. Of particular interest is a homogeneous and unstratified deposit of over 2 m which overlies the archaeology near the southern perimeter of the summit area. The soil structure as evident in thin sections indicates a high degree of bioturbation, probably stimulated by recent manuring and cultivation. The implication is that tillage erosion has had a major impact on the morphology as well as on the surface soils of the tell. Despite such reworking and redeposition of near surface materials, it is still possible from multi-element analysis to identify the geochemical distinctiveness of six archaeological contexts (pit, house, plaster floor, alley, road and yard); pits and floors have high loadings of all elements except Pb; in contrast pits and floors have the lowest elemental concentrations.  相似文献   
108.
109.
Three cohorts of older Americans are examined to determine how they perceive the likelihood of being able to access health care in the future. A modified Andersen (1968) model provides the framework for the study. A representative sample of 2,404 noninstitutionalized midwestern older persons separated into three age cohorts (60–69, 70–79, and 80+) was used. Predisposing, enabling, and need factors were examined by logistic regression. Significant differences were found between age cohorts, with the perceptions of the oldest-old and the youngest-old appearing to be markedly more sensitive than those of the middle-old. Need factors of health and the respondents' perceptions of help they needed with instrumental activities of daily living, and enabling factors of community size and the barrier imposed by lack of transportation, combined to explain the perceptions of the oldest-old. For the youngest-old, the significant variables were bills, gender, barriers imposed by inadequate insurance, lack of transportation, and a perception that physicians charged more than allowed by Medicare. Recommendations are made for health care policy with respect to different age cohorts among the elderly, their families, and the rurality of the population.  相似文献   
110.
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