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   3205篇
  免费   96篇
  国内免费   1篇
管理学   504篇
民族学   15篇
人才学   1篇
人口学   255篇
丛书文集   25篇
理论方法论   340篇
综合类   24篇
社会学   1730篇
统计学   408篇
  2023年   19篇
  2021年   12篇
  2020年   36篇
  2019年   55篇
  2018年   69篇
  2017年   77篇
  2016年   79篇
  2015年   53篇
  2014年   66篇
  2013年   533篇
  2012年   95篇
  2011年   86篇
  2010年   79篇
  2009年   85篇
  2008年   100篇
  2007年   102篇
  2006年   105篇
  2005年   103篇
  2004年   103篇
  2003年   106篇
  2002年   114篇
  2001年   66篇
  2000年   56篇
  1999年   69篇
  1998年   55篇
  1997年   64篇
  1996年   71篇
  1995年   43篇
  1994年   48篇
  1993年   47篇
  1992年   44篇
  1991年   50篇
  1990年   45篇
  1989年   40篇
  1988年   33篇
  1987年   36篇
  1986年   22篇
  1985年   26篇
  1984年   42篇
  1983年   39篇
  1982年   35篇
  1981年   48篇
  1980年   31篇
  1979年   25篇
  1978年   23篇
  1977年   31篇
  1976年   31篇
  1975年   17篇
  1974年   11篇
  1973年   21篇
排序方式: 共有3302条查询结果,搜索用时 15 毫秒
51.
Early utopias envisioning a perfect order were superseded by small-scale versions in utopian communities. Scientific socialism then held that utopian socialism was doomed to failure in a hostile capitalistic world. As the Soviet experience elicited anti-utopias, utopianism has been unable to resolve its own contradictions in an imperfect world. This tragic outcome is an opportunity for sociology in its study of human interactions to analyze both the possibilities and the inherent limitations of proposed social systems. By monitoring the rich variety of social experience, it may help to restrain some of the fanaticisms that now surround us.These remarks were presented at the 1988 annual meetings of the Eastern Sociological Society in Philadelphia, March 1988.  相似文献   
52.
53.
54.
Software which allows interactive exploration of graphical displays is widely available. In addition there now exist sophisticated authoring tools which allow more general textual and graphical material to be presented in computer-based form. The role of an authoring tool in providing a graphical interface to a strategy for solving simple statistical problems in the context of teaching is discussed. This interface allows a variety of resources to be integrated. Specific examples, including the use of dynamic graphical displays in exploring data and in communicating the meaning of a model, are proposed. These ideas are illustrated by a problem involving the identification of the sex of a herring gull.  相似文献   
55.
56.
European food retailers have increased their scale and scope while concentrating sales into large stores. Strategic implications include the need for scale to compete and organisational relationships to move from supply push to demand pull retailing. Consequences are different for private label and for branded manufacturers, who must respond to the demands of retail supply chains whilst retaining control of product development. Further concentration in both sectors is likely. Consumers are more mobile, but more captive to the retailer in store. Public policy makers are challenged to find new measures of retail power and both allow for innovation and ensure equitable shopping opportunities.  相似文献   
57.
This study examines a key component of environmental risk communication; trust and credibility. The study was conducted in two parts. In the first part, six hypotheses regarding the perceptions and determinants of trust and credibility were tested against survey data. The hypotheses were supported by the data. The most important hypothesis was that perceptions of trust and credibility are dependent on three factors: perceptions of knowledge and expertise; perceptions of openness and honesty; and perceptions of concern and care. In the second part, models were constructed with perceptions of trust and credibility as the dependent variable. The goal was to examine the data for findings with direct policy implications. One such finding was that defying a negative stereotype is key to improving perceptions of trust and credibility.  相似文献   
58.
On the basis of discussion and analysis during and following an ATSDR science panel on the bioavailability of mercury in soils, it is apparent that the default assumption of 100% relative bioavailability for mercury-contaminated soils is excessively conservative. However, current knowledge does not allow the development of default assumptions or guidelines for determining relative bioavailability of mercury in soils. Until such default assumptions or guidelines can be developed, site-specific assays of bioavailability, preferably using either animal bioassays or validated in vitro techniques, may provide the best approach for estimating soil-mercury bioavailability.  相似文献   
59.
The article is based on the premise that, from a macro-economic viewpoint, cyber attacks with long-lasting effects are the most economically significant, and as a result require more attention than attacks with short-lasting effects that have historically been more represented in literature. In particular, the article deals with evaluation of cyber security risks related to one type of attack with long-lasting effects, namely, theft of intellectual property (IP) by foreign perpetrators. An International Consequence Analysis Framework is presented to determine (1) the potential macro-economic consequences of cyber attacks that result in stolen IP from companies in the United States, and (2) the likely sources of such attacks. The framework presented focuses on IP theft that enables foreign companies to make economic gains that would have otherwise benefited the U.S. economy. Initial results are presented.  相似文献   
60.
We use an event-study analysis to understand how alliance activity affects firm risk. The risk measure is the implied volatility of a firm’s stock price and the events are alliance announcements to the market. We build on the previous event-studies in the alliance literature that focus on the change in shareholder value by taking the first step in delineating what part of that value arises from the changes in the firm’s risk. The analysis reveals that a number of factors within a firm’s control can be used to manipulate risk exposure in an alliance, including the similarity of the firm’s and the alliance’s core activities, the governance form of the alliance, and the function of the alliance.  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