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   125篇
  免费   4篇
  129篇
  2023年   1篇
  2022年   2篇
  2021年   1篇
  2020年   3篇
  2019年   15篇
  2018年   10篇
  2017年   16篇
  2016年   7篇
  2015年   4篇
  2014年   5篇
  2013年   21篇
  2012年   9篇
  2011年   2篇
  2010年   2篇
  2009年   2篇
  2008年   5篇
  2007年   3篇
  2006年   9篇
  2005年   1篇
  2004年   1篇
  2003年   2篇
  2002年   2篇
  2000年   2篇
  1997年   1篇
  1996年   1篇
  1994年   1篇
  1993年   1篇
排序方式: 共有129条查询结果,搜索用时 0 毫秒
101.
    
The aim of this paper is to examine the relationship between occlusal surface wear and approximal facet length in a North American archaeological sample of modern human hunter–gatherers (n = 111) and agriculturalists (n = 123). First maxillary molars (M1) were selected. The approximal wear facet was measured on the mesial surface of each M1 at the widest breadth using needle tipped digital callipers. Digital images were taken of the occlusal surface and wear was recorded as the percentage of dentine exposed to the total occlusal surface. Independent age estimate was based on age‐related changes, (pubic symphysis and auricular surface). Results show the hunter–gatherers had a significantly faster rate of wear on both tooth surfaces compared to the agriculturalists in each of the four age groups. Both lifeway groups showed a positive correlation between the two tooth surfaces during the early stages of tooth wear (less than 25% occlusal wear), where the percentage of occlusal wear and the length of the approximal facet increased at a similar rate. During the middle and final stages of tooth wear (occlusal wear greater than 35%) there was a strong negative correlation between the two surfaces in both groups. It is suggested this pattern is due to the shape and function of the M1. Both correlations were more extreme in the hunter–gatherers than the agriculturalists. When the per cent of occlusal wear exceeded 35% the length of the approximal facet started to decrease, and it is therefore recommended studies that include approximal wear exclude molars with heavy occlusal wear. Copyright © 2010 John Wiley & Sons, Ltd.  相似文献   
102.
    
The Commissioner of Official languages warned in 1985 that “official bilingualism in Canada is poised between an honest linguistic partnership and the.. .danger of linguistic territorialization on the Belgian model.” This study examines the evidence of language accommodation between the anglophone and francophone populations within the cultural transition zone situated between English and French Canada and assesses which trend seems to be prevalent.  相似文献   
103.
    

Oceanographic research commencing in the mid-19th century could not rely on the direct observation of its object, but had to create its images of ocean depth through remote investigation. Depth became a matter of scientific definitions, systematic measurements, and graphic representations. In the course of a century, the opaque ocean of the 1850s was densely depicted in physical terms and transformed into a technically and scientifically sound oceanic volume. Tracing the history of deep-sea sounding technology from wire sounding around 1850 to acoustic sounding in the early 1920s, the paper investigates the relation and interplay between conceptual, pictorial, and technological depth performance. Addressing the conditions and limitations oceanographers encountered in producing single measurements and arranging them into profiles and contour line charts, the paper takes on a narrative approach to spatial representation: resembling a narrated or written story, the texture of depth depended on the richness and coherence of its plots.  相似文献   
104.
    
One of the stated goals of microfinance programs is to increase the bargaining power of women within the household. However, little is known about other ways women in patriarchal communities may be affected by these programs. This study assessed the effects of the membership in a microfinance joint liability group (MJLG) on the lives and social networks of its women members by focusing on the interplay of MJLG practices and gendered cultural practices such as ‘purdah’ (veiling of the face). Using in-depth interviews of 35 women in Lucknow, a city in northern India, the study found that, overall, respondents who were members of an MJLG reported developing new and stronger relationships with other members of the group. These social interactions were found to be deeper among women who were using the microloans for self-employment than among women who were redirecting their loan funds to other family members. The study also found that the adaptability of microfinance organizations to the local culture appeared to enable women to join MJLGs with ease and to contribute economically to their families.  相似文献   
105.
    
The article describes in some detail the structural features of a 9th-century shipwreck that was recently found in Indonesian waters. The principle features of the wreck include planks joined by stitching with wadding inboard and outboard of the hull, a sharp bow with little rake, stitched-in frames, through-beams stitched to the hull, removable ceiling planks, a keelson and stringers, and a composite iron and wood anchor. These characteristics are shown to be those of ancient Arab and Indian vessels. Identification of several timber species confirms that the ship was constructed in the western Indian Ocean region. The cargo provides strong evidence for China as the place of lading. © 2000 The Nautical Archaeology Society  相似文献   
106.
107.
In both the US and Japan, popular narratives recounting the story of Commodore Perry's 1853–1854 US naval expedition to Japan have played a key role in the textual negotiation of commonsense understandings of space, place, history, and geopolitics. We use the textual analysis of a range of US and Japanese popular narratives of Perry/‘black ships’ stories to read this negotiation in terms of concepts of proximity and distance. Discussing different ways in which the vastness of the Pacific Ocean has been dealt with textually, we comment on the ways in which narrative histories of these events relate to differing understandings of national identity and US–Japan relations. We argue that the history of US popular narratives displays a steady reduction of transpacific distance, with the story's focus shifting away from details of the ocean voyage and towards the creation of a metaphorical setting for US–Japan relations, a setting identified with a Japanese location but framed within a US point of view. Japanese narratives, meanwhile, have displayed two contrasting trends, both of which could be read as forms of resistance to US rhetorical appropriations of Japanese national space and history. On the one hand, narratives dealing with Japanese history in the context of a US–Japan rivalry have tended to remove the ocean and shorten transpacific distance, thereby reducing the significance of the Perry initiative; on the other hand, narratives setting Japanese history on the broader global stage have tended to highlight the ocean as a vast space of distances and opportunities.  相似文献   
108.
    
Studies of the homeland-oriented activism of diasporic groups focus on cases where those who share national origins also share common political interests. But other literature indicates that ethnic majority and minority groups may have different attitudes towards their homelands. This paper examines how majority and minority religious status in the homeland affects the foreign policy activism of immigrant organisations. It also examines how competing groups mobilising around foreign policy concerns frame their issues in such a way as to resonate with their Western audiences. Using examples of the mobilisation of Indian American groups around religious issues in India, it demonstrates that there are fundamental differences in the concerns and goals of Hindu American organisations and those representing Muslims, Sikhs and Christian Americans of Indian ancestry. These differences often result in opposing patterns of mobilisation around homeland issues.  相似文献   
109.
    
In 1869, leading members of the Wesleyan holiness movement established Ocean Grove, an oceanfront camp meeting resort in Monmouth County, New Jersey that would become one of the most popular religious resorts in the United States. Scholarship on Ocean Grove treats the resort as a significant example of the spatial preferences and town planning efforts of the holiness movement. Tracing conflicts between leisure and worship, and between the romanticization of nature versus the sacralization of city life, suggests the landscape of the resort emerged as a mediation of these conflicts and provides further evidence for the sacralization of nature as a necessary component in the planning of Methodist and holiness communities in the late nineteenth century.  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