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   103篇
  免费   5篇
  108篇
  2023年   4篇
  2019年   2篇
  2016年   11篇
  2015年   4篇
  2014年   4篇
  2013年   22篇
  2012年   3篇
  2011年   4篇
  2010年   9篇
  2009年   5篇
  2008年   4篇
  2007年   2篇
  2006年   1篇
  2005年   2篇
  2004年   4篇
  2002年   3篇
  2001年   1篇
  2000年   1篇
  1999年   4篇
  1998年   1篇
  1997年   1篇
  1995年   1篇
  1994年   1篇
  1990年   1篇
  1988年   2篇
  1986年   2篇
  1985年   2篇
  1983年   3篇
  1981年   1篇
  1979年   1篇
  1978年   1篇
  1972年   1篇
排序方式: 共有108条查询结果,搜索用时 15 毫秒
91.
The scale of prehistoric canal construction in the North American Southwest peaked in a.d. 450–1450, during what has been named the Hohokam Millennium. Explanations for the eventual Hohokam “collapse” remain elusive. Environmental disturbances, such as floods, that were once manageable may have become unmanageable. Recent archaeological excavations of Hohokam canals in Phoenix identified stratigraphic evidence for three destructive floods that date to a.d. 1000–1400 within two large main canals in System 2, Hagenstad and Woodbury’s North. Woodbury’s North Canal was flood-damaged and abandoned sometime after a.d. 1300. Thereafter, no main canals of similar size were constructed to supply villages within System 2 and the area was depopulated. Our investigation provides the first stratigraphic evidence for a destructive flood during the late Classic period in the lower Salt River Valley and is compatible with the hypothesis of diminished resilience to environmental disturbance at the end of the Hohokam Millennium.  相似文献   
92.
The Bellême family were among the most important of the new families to emerge in the unsettled conditions of northern France in the tenth century. They illustrate well the manner in which those families extended their influence at the expense of declining central authorities. The nature of their relations with their overlords, the counts of Maine and the dukes of Normandy, is examined and a new chronology proposed for the complex divisions of estates among the family. It is suggested that family quarrels of the 1040s and 1050s seriously weakened their position and that the lordship was easily dominated by Geoffrey Martel, count of Anjou, the most powerful figure in mid-eleventh century northern France. A reversal is traced in the pro-Angevin sympathies of Bishop No of Sées, the last surviving male member of the family, after the failure of the coalition of Angevins and Capetians against the duke of Normandy in 1054. However, it was not until the estates of the family were eventually reunited in 1071 on the succession of Ivo's niece, Mabel, and her Norman husband, that the lordship came completely under the influence of the ascendant Normandy.  相似文献   
93.
At first glance, perhaps nothing seems more mundane and apolitical than a purse. But purses have always been much more than a fashion accessory. This article analyses how southern Black women – both the legendary and the lesser known – in the ‘classical’ phase of the Civil Rights Movement used purses to appear as respectable ladies' when their dress and comportment were under close surveillance. Yet they simultaneously used their purses as private, female-controlled spaces that aided them in achieving a wide variety of social, economic and political objectives. In fact, many southern Black women used their purses to hide critical items needed to prepare themselves and protect their bodies as they voted, sat-in, rode on public transportation and integrated schools. Using oral histories, memoirs, newspaper and magazine stories and photographs, this article argues that Black southern female activists used purses primarily as ‘toolkits’. In the process, it reveals that Black southern women's participation in the armed self-defence movement is far more significant than scholars have appreciated.  相似文献   
94.
Field-based, residential environmental education programs are immersive, science-rich learning experiences that aim to achieve educational, personal growth, and behavioral outcomes. Evaluations of such programs typically use pre- and post-surveys or interviews and, in some cases, participant observation. Understanding how participants respond to, and make meaning of, their experiences in the moment is an understudied facet that could improve program outcomes; thus, this study explored participant narratives of their experience through online journaling, or ‘blogging'. We piloted the blogging activity with students during their participation in a four-to-five-day program and conducted follow-up retrospective evaluation upon students' return to the classroom. Our findings demonstrate that connection to place, personal growth, and identity were critical aspects of the participant experience; these aspects may be conditioned by participants' previous nature experiences, as well as access to nature. We reflect on the utility of blogging in assessing intermediary and ultimate programmatic outcomes.  相似文献   
95.
Theoretical developments in sociocultural anthropology have transformed the study of kinship. Here, we review these theoretical developments, consider their influence on bioarchaeological kinship research, and propose an alternative framework for studying relatedness in antiquity. We find that broader, more flexible conceptions of relatedness have grown increasingly prevalent in 21st-century bioarchaeology, but kinship research largely continues to emphasize methodological improvement and identification of biological kin in archaeological contexts. By approaching kinship as a multiscalar dimension of social identity, bioarchaeologists can leverage complex conceptions of relatedness with diverse types of data to gain nuanced perspectives on family-based social organization in the past.  相似文献   
96.
97.
98.
99.
100.
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