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   4228篇
  免费   123篇
  2020年   26篇
  2019年   43篇
  2018年   336篇
  2017年   251篇
  2016年   313篇
  2015年   64篇
  2014年   59篇
  2013年   909篇
  2012年   144篇
  2011年   266篇
  2010年   273篇
  2009年   143篇
  2008年   138篇
  2007年   171篇
  2006年   95篇
  2005年   71篇
  2004年   46篇
  2003年   39篇
  2002年   33篇
  2001年   42篇
  2000年   33篇
  1999年   36篇
  1998年   24篇
  1997年   21篇
  1996年   29篇
  1995年   30篇
  1994年   22篇
  1993年   30篇
  1992年   24篇
  1991年   22篇
  1989年   18篇
  1988年   23篇
  1987年   25篇
  1986年   29篇
  1985年   24篇
  1984年   25篇
  1983年   31篇
  1982年   31篇
  1981年   27篇
  1980年   28篇
  1979年   27篇
  1978年   23篇
  1977年   20篇
  1976年   22篇
  1975年   19篇
  1974年   17篇
  1973年   16篇
  1971年   14篇
  1968年   18篇
  1967年   20篇
排序方式: 共有4351条查询结果,搜索用时 62 毫秒
41.
Studies of dog remains focused on the Iron Age southern Levant generally highlight their unique nature in the archaeological context, specifically in relation to their post-mortem exploitation. Here we review the published archaeological and textual data to evaluate the current understanding of dogs’ roles in their Iron Age settings. The analysis reveals that dogs are relatively common in the archaeological record, having been reported at 66% of sites. This study further contextualizes this presence in light of their co-occurrence with caprine and wild taxa. The significant number of dog remains indicates that they were part of the social matrix of a village. While dogs have been viewed as ‘unclean’ or pariah, based on certain textual references in the Hebrew Bible, we assert, on the basis of the archaeological record, that they were part of the life of the village, functioning as herders, guards and occasionally hunters.  相似文献   
42.
Imaginación del Nuevo Mundo. Diez estudios sobre los inicios de la narrativa hispanoamericana. By JOSE JUAN ARROM. México: Siglo XXI Editores, 1991. Pp. 196.

Signs, Songs, and Memory in the Andes: Translating Quechua Language and Culture. By REGINA HARRISON. Austin: University of Texas Press, 1989. Pp. xvii, 233.

The Armature of Conquest: Spanish Accounts of the Discovery of America, 1492–1589. By BEATRIZ PASTOR. Translated by LYDIA LONGSTRETH HUNT. Stanford: Stanford University Press, 1992. Pp. x, 317.

Mil leguas por América. De Lima a Caracas 1740–1741. Diario de don Miguel de Santisteban. Preliminary study by DAVID J. ROBINSON. Bogotá: Banco de la República, 1992. Pp. 323.  相似文献   

43.
44.
The flame atomic absorption spectroscopy method of analysis of trace elements (Mn, Sr, and Cu) in a mammoth's bone and the method of estimation of the data using regression analysis are described. The concentration fields of the single elements in a cross-section through the bone are well described by a fourth degree polynomial. The minimum values and their coordinates have been determined. A method of determination of the original concentrations of trace elements in fossil bones is described further. The approximating features of the regression exponential equations and of the diffusion functions of various shapes were determined and a method for calculating the concentrations and diffusion properties of the bones once deposited in the soil is suggested. The original trace element concentration can be estimated by extrapolation of a suitable exponential or diffusion function.  相似文献   
45.
The paper examines the ancestry of Europeans in Sydney and that of the two largest non European groups. Spatial divergence occurs between the English, Scottish and Irish, and divergence from those of Australian ancestry. Residential persistence across generations occurs with persons of Greek, Italian, Maltese and Dutch origins, but not spatial segmentation. While there is greater language persistence in Greek and Italian second and third settlement concentrations, few third generation persons speak their ancestral language at home. The Chinese and Lebanese are compared with Greek and Italian ancestry in their areas of strongest representation. First generation Chinese are evident in areas of both low and high socioeconomic status, but without third generation language persistence. An evolving ethnic mix in Sydney is indicated.  相似文献   
46.
The issue of fairness often is central within environmental policy debates. The recent proliferation of state and local comparative risk projects for informing the selection of environmental policy priorities offers an appropriate setting to explore the issue of procedural fairness in risk-based decisionmaking. This paper describes and evaluates the process by which one of the initial state comparative risk projects, Washington's “Environment 2010,” attempted to include a broader range of participants in identifying, assessing, and generating preferred management strategies for a wide range of environmental hazards. The Washington case study suggests that comparative risk projects can be fairer procedurally, but that significant barriers remain. Noting that greater procedural fairness does not necessarily produce greater substantive fairness, the paper concludes that more attention needs to be directed at the process by which comparative risk projects translate their consensus upon risk priorities into subsequent actions.  相似文献   
47.
Speakers at the Third Social, Humanitarian, and Cultural Committee Assembly held in December 1994 maintained that power sharing between women and men is still intolerably low and that economic hardship, abuse, and discrimination remain. One speaker announced that society needs to do more to challenge obstacles to women's advancement: poverty, violence, access to resources, women's rights, education, and health. She asserted that, for this reason, the Fourth World Conference on Women scheduled for September 1995 in Beijing must succeed. Discussions and action at the December assembly will constitute a major part of the groundwork for the Beijing Conference. The Committee debate centered on the advancement of women as a cause and effect of development. The 1994 World Survey on the Role of Women in Development shows that economic development may be complexly connected with advancement of women. In societies where women have progressed, the economy tends to grow steadily, while, in societies where women cannot fully participate in development, the economy is stagnant. The Assembly called on the Commission on the Status of Women to ensure that the Platform for Action recognize and incorporate older women's concerns and contributions to development into its strategies, programs, and policies. It also called for countries to protect women migrant workers from violence and corrupt recruitment practices. It condemned the illegal trafficking of women and girls across borders for sexual or economic oppressive and exploitative purposes and for other illegal activities (forced domestic labor, false marriages, clandestine employment, and false adoption).  相似文献   
48.
Blue glass trade beads from well-dated late seventeenth- to early twentieth-century sites and collections have been analysed non-destructively by instrumental neutron activation analysis. The beads display enough variations in their elemental contents to allow us to characterize the different chemistries. The implication of these results is that similar chemical analyses of blue beads from undated archaeological sites may be used to help date the sites, since each bead chemistry has a specific earliest period.  相似文献   
49.
50.
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