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   239篇
  免费   31篇
  2023年   1篇
  2022年   4篇
  2021年   4篇
  2020年   8篇
  2019年   7篇
  2018年   13篇
  2017年   20篇
  2016年   17篇
  2015年   8篇
  2014年   15篇
  2013年   66篇
  2012年   11篇
  2011年   13篇
  2010年   8篇
  2009年   8篇
  2008年   11篇
  2007年   7篇
  2006年   10篇
  2005年   6篇
  2004年   8篇
  2003年   8篇
  2002年   4篇
  2001年   5篇
  2000年   2篇
  1999年   3篇
  1997年   1篇
  1988年   1篇
  1983年   1篇
排序方式: 共有270条查询结果,搜索用时 15 毫秒
1.
2.
The Akko 1 shipwreck was an Egyptian armed vessel, built at the beginning of the 19th century. A wooden saw handle and a box containing iron nails and two split pins were discovered towards the stern. Given their function, location and context, these were part of the ship's carpenter's tools and accessories. A methodology was developed for conducting systematic metallurgical analysis in order to understand the manufacturing process of the surviving ironwork items, as well as to enlarge our knowledge regarding ironworking technologies during the early 19th century. Such methodology may assist in the future understanding of the technological evolution of similar wrought‐iron objects. The results demonstrated that the artefacts have a wrought‐iron heterogeneous microstructure and were manufactured by hot‐working prior to surface hardening by pack carburization.  相似文献   
3.
This introduction to the translation of Henri Lefebvre's 1956 essay “The theory of ground rent and rural Sociology” moves through three stages. First, it suggests that Anglophone appropriations of Lefebvre have tended to focus too much on his urban writings, at the expense of understanding his early work on rural sociology, and failing to recognise how his urban focus emerged as a result of his interest in rural–urban transformation. Second, it provides a summary of his wider work on rural questions, including his unfinished work on a major treatise of rural sociology; and outlines the key themes of the present essay in relation to these other projects. Third, it connects Lefebvre's issues to wider debates in political economy and geography about aspects of the rural, land and ground rent, not least including the work of Antonio Gramsci and José Carlos Mariátegui.  相似文献   
4.
This paper offers a snapshot of the 2015 El Niño drought among Min people in Papua New Guinea's West Sepik and Western Provinces. Local assessments of food, water, and health show variation between locations, but with an overall tendency for the drought's effects to spread from lower to higher elevations as the drought progresses. This zone is in the hinterland of the Ok Tedi Mine, and the drought's regional impact was intensified by Ok Tedi's abrupt closure when low water in the Fly River stopped shipments of concentrate and cut off fuel and food supplies. The decision to close the mine was accompanied by the mandatory ‘repatriation’ of workers and their families to ‘home’ communities in the drought‐stricken hinterland. This, combined with deteriorating regional links, has eroded the capacity of Min communities to weather the drought, suggesting that we must look beyond the garden when calculating El Niño's costs.  相似文献   
5.
This review discusses recent challenges to the welfare state arising from the Great Recession (GR). The GR was a significant event for social policy analysts, as it tested the responsiveness of welfare systems in the midst of a recent trend toward austerity politics in advanced economies. Social policy changes were part of the toolkit advanced democracies used to respond to the GR, and the welfare state mitigated the consequences of the GR. However, a stark limitation of the social safety net in the United States was the failure to assist immigrant households. The nexus of immigration and social policy is likely to be a significant controversy as we consider the meaning of social citizenship.  相似文献   
6.
The impacts and activities of international retailers have beenlargely ignored in the globalisation discourse. A possible reasonfor this is the absence, in international retailing, of conceptand theory that does not hang on the coat-tails of internationalproduction. The paper attempts to consider international retailingin its own right. Three linked questions are explored. Has theinternationalisation process of the large retailers resultedin an increase in the global concentration of sales? In whatways does the process of retailer internationalisation differfrom the internationalisation of production? What does the committedinternational retailer transfer to the host country during theinternationalisation process?  相似文献   
7.
本文系“马臀烫印与番马画鉴定”系列研究之第三篇论文。该文与下期发表之《臀部的破绽:由马臀烫印质疑波士顿本<胡笳十八拍册>之版本年代》并合.藉由图像分析、风格分析、马臀烫印等三种研究角度,检证波士顿美术馆本《胡笳十八拍图》册、台北故宫本《胡笳十八拍图》册、大都会博物馆本《胡笳十八拍图》卷等存世三种具代表性的刘商谱系版本.从而质疑波士顿本作为刘商谱系“笳拍图”图像系列中年代最早、内容最精之祖本的论点。  相似文献   
8.
The term avian osteopetrosis is used to describe alterations to the skeletal elements of several species of domestic bird, most typically the chicken, Gallus gallus domesticus (L. 1758). Such lesions are routinely identified in animal bones from archaeological sites due to their distinctive appearance, which is characterised by proliferative diaphyseal thickening. These lesions are relatively uncomplicated for specialists to differentially diagnose and are caused by a range of avian leucosis viruses in a series of subgroups. Only some avian leucosis viruses cause the development of such characteristic lesions in osteological tissue. Viraemia is necessary for the formation of skeletal pathology, and avian osteopetrosis lesions affect skeletal elements at different rates. Lesion expression differs by the age and sex of the infected individual, and environmental conditions have an impact on the prevalence of avian leucosis viruses in poultry flocks. These factors have implications for the ways in which diagnosed instances of avian osteopetrosis in archaeological assemblages are interpreted. By integrating veterinary research with archaeological evidence for the presence of avian leucosis viruses across Western Europe, this paper discusses the nature of these pathogens, outlines criteria for differential diagnosis, and offers a fresh perspective on the human‐aided movement of animal disease in the past through investigation of the incidence and geographic distribution of avian osteopetrosis lesions from the first century BC to the post‐medieval period. © 2017 The Authors International Journal of Osteoarchaeology Published by John Wiley & Sons Ltd.  相似文献   
9.
Psalms 52-55 constitute a cluster of psalms with significant links to one another, to Proverbs, and also to the history of David. Psalms 52 and 55 were both also influenced by motifs from Jer 9. These features point to their having been composed (Ps 52) or edited (Ps 55) with a specific focus in mind. This article attempts to read Psalm 55 on its own, but also within the context of the cluster and in its relationship to Jer 9 as well as David’s history in order to refine our knowledge of the problems, values, hopes and expectations of the Persian period editors who compiled and edited the cluster.  相似文献   
10.
Oral cleft (OC) is a common congenital anomaly in humans, which occurs in approximately one per 700 live births. However, cleft skulls are found relatively seldom in archaeological specimens, especially for the bc period. Mortality of infants with OC was apparently high because of breastfeeding difficulties and culturally sanctioned rejection of them in the past. This paper presents one of the most ancient cases of OC in Eurasia. The finding comes from the Middle Bronze Age pastoralists' cemetery in Altai, Russia. The skeletal remains have been radiocarbon dated to 1883–1665 cal bc . Cranial and dental measurements, computed tomography and radiography have been used to examine this malformation. The facial sculpting reconstruction has been performed to visualise the ante mortem appearance of the cleft face. Besides, δ13C and δ15N isotope analysis was used for a comparative study of the diet of the cleft individual. It has been established that a young man from Altai was affected by complete bilateral cleft lip and alveolus, which is a very rare form of typical OC. This defect is associated with dental anomalies such as hypodontia, microdontia, and ectopia as well as with dysmorphology of the facial complex outside the cleft area, including mild hypertelorism, hypoplasia of nasal bones and antheroposterior maxillary deficiency. Furthermore, aplasia of the frontal sinuses and the sacral spina bifida occulta have been observed. These findings are consistent with clinical data indicating strong correlation between development of a major defect and multiple minor anomalies. The results of the study also suggest that there was tolerant attitude towards the facial deformities among the ancient Altai pastoralists. Copyright © 2016 John Wiley & Sons, Ltd.  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