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   1863篇
  免费   55篇
管理学   293篇
民族学   9篇
人口学   141篇
丛书文集   7篇
理论方法论   213篇
综合类   19篇
社会学   943篇
统计学   293篇
  2023年   14篇
  2022年   6篇
  2021年   10篇
  2020年   32篇
  2019年   55篇
  2018年   47篇
  2017年   66篇
  2016年   49篇
  2015年   52篇
  2014年   64篇
  2013年   300篇
  2012年   69篇
  2011年   61篇
  2010年   57篇
  2009年   48篇
  2008年   70篇
  2007年   57篇
  2006年   60篇
  2005年   54篇
  2004年   54篇
  2003年   50篇
  2002年   47篇
  2001年   54篇
  2000年   40篇
  1999年   40篇
  1998年   36篇
  1997年   33篇
  1996年   19篇
  1995年   23篇
  1994年   27篇
  1993年   14篇
  1992年   15篇
  1991年   21篇
  1990年   17篇
  1989年   10篇
  1988年   25篇
  1987年   19篇
  1986年   20篇
  1985年   19篇
  1984年   19篇
  1983年   15篇
  1982年   12篇
  1981年   22篇
  1980年   17篇
  1979年   13篇
  1978年   16篇
  1977年   7篇
  1976年   10篇
  1975年   10篇
  1974年   7篇
排序方式: 共有1918条查询结果,搜索用时 15 毫秒
101.
102.
Reply     
This article develops a new identification procedure to estimate the contemporaneous relation between monetary policy and the stock market within a vector autoregression (VAR) framework. The approach combines high-frequency data from the futures market with the VAR methodology to circumvent exclusion restrictions and achieve identification. Our analysis casts doubt on VAR models imposing a recursive structure between innovations in policy rates and stock returns. We find that a tightening in policy rates has a negative impact on stock prices and that the Federal Reserve (Fed) has responded significantly to movements in the stock market. Estimates are robust to various model specifications.  相似文献   
103.

Violence against psychiatric staff seems to be on the increase. Such abuse can lead to mental health consequences for the staff and a reluctance to be closely involved with patients. Few Swedish investigations have examined violence against mental nurses and psychiatrists, or undertaken comparative studies between them. In this study we examined the extent, nature and determinants (i.e. risk factors) of violence against psychiatric nurses (n = 731) and psychiatrists (n = 320) working in the eight health care districts of Stockholm. These caregivers were assessed cross-sectionally by means of a questionnaire covering various areas (e.g. violence and work environment). The majority of the participants (85%) reported having been exposed to violence during their careers, with 57% being victimized in the past 12 months. Physical violence was common, and factors such as negative attitudes to work and diminished sense of autonomy were associated with an increased vulnerability to violence. Nurses and psychiatrists did not differ in violence variables. In spite of the weaknesses of the design (cross-sectional self-selecting sample), this study corroborates previous findings and identifies personal factors associated with violence that have received little attention in the literature (e.g. lack of respect for the organization of care).  相似文献   
104.
105.
106.
Our study explores the adoption of Facebook and Twitter by candidates in the 2013 German Federal elections. Utilizing data from the German Longitudinal Election Study candidate survey fused with data gathered on the Twitter and Facebook use of candidates, we draw a clear distinction between Facebook and Twitter. We show that adoption of both channels is primarily driven by two factors: party and money. But the impact of each plays out differently for Facebook and Twitter. While the influence of money is homogenous for Facebook and Twitter with the more resources candidates have, the more likely they are to adopt, the effect is stronger for Facebook. Conversely, a party’s impact on adoption is heterogeneous across channels, a pattern we suggest is driven by the different audiences Facebook and Twitter attract. We also find candidates’ personality traits only correlate with Twitter adoption, but their impact is minimal. Our findings demonstrate that social media adoption by politicians is far from homogenous, and that there is a need to differentiate social media channels from one another when exploring motivations for their use.  相似文献   
107.
108.
The author discusses the limitations of statistical forecasting as a guide to managerial planning, with specific reference to technological and market changes in the glass industry. He advocates the use of a Forecast Adjustment Matrix as a framework for identifying marketing and technological factors which might produce significant deviations from established trends. Finally, he suggests that the analysis and adjustment of technological and market trends should be made periodically. The whole technological forecasting operation should be formalized and it should be made the specific responsibility of one organizational unit within the company.  相似文献   
109.
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