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   1005篇
  免费   35篇
管理学   170篇
民族学   5篇
人才学   1篇
人口学   57篇
丛书文集   10篇
理论方法论   164篇
综合类   2篇
社会学   517篇
统计学   114篇
  2023年   5篇
  2021年   4篇
  2020年   20篇
  2019年   11篇
  2018年   17篇
  2017年   28篇
  2016年   31篇
  2015年   20篇
  2014年   21篇
  2013年   158篇
  2012年   41篇
  2011年   24篇
  2010年   32篇
  2009年   22篇
  2008年   32篇
  2007年   27篇
  2006年   43篇
  2005年   28篇
  2004年   36篇
  2003年   37篇
  2002年   29篇
  2001年   14篇
  2000年   19篇
  1999年   21篇
  1998年   21篇
  1997年   17篇
  1996年   19篇
  1995年   12篇
  1994年   22篇
  1993年   23篇
  1992年   17篇
  1991年   6篇
  1990年   19篇
  1989年   14篇
  1988年   14篇
  1987年   12篇
  1986年   7篇
  1985年   16篇
  1984年   11篇
  1983年   15篇
  1982年   3篇
  1981年   13篇
  1980年   7篇
  1979年   11篇
  1978年   6篇
  1977年   7篇
  1976年   7篇
  1975年   5篇
  1973年   6篇
  1967年   2篇
排序方式: 共有1040条查询结果,搜索用时 31 毫秒
61.
Obsessive-compulsive disorder (OCD) is a chronic, impairing condition with an estimated lifetime prevalence in adults of 2.5%. Controlled treatment trials have demonstrated that cognitive-behavioral therapy (CBT) is an effective intervention for OCD. However, many individuals diagnosed with OCD do not receive appropriate, empirically validated interventions, perhaps due to limited knowledge of CBT among mental health practitioners. This article provides a review of CBT for OCD. Issues related to treatment delivery and assessment are presented and highlighted by an individual example.  相似文献   
62.
Presidential Coattails in 1972   总被引:1,自引:0,他引:1  
Because Richard Nixon's overwhelming victory in the 1972 presidentialelection was not accompanied by any significant increase inRepublican representation in Congress, it has been assumed thathis coattails were exceedingly short. However, analysis of severalkinds of evidence suggests that such an assumption is prematureand that Nixon's pulling power has been underestimated. An explanationof the failure of Republican gains to materialize as congressionalseats may be found in the competitive disadvantages sufferedby Republicans in a period of increasingly safe seats.  相似文献   
63.
Probabilistic risk analyses often construct multistage chance trees to estimate the joint probability of compound events. If random measurement error is associated with some or all of the estimates, we show that resulting estimates of joint probability may be highly skewed. Joint probability estimates based on the analysis of multistage chance trees are more likely than not to be below the true probability of adverse events, but will sometimes substantially overestimate them. In contexts such as insurance markets for environmental risks, skewed distributions of risk estimates amplify the "winner's curse" so that the estimated risk premium for low-probability events is likely to be lower than the normative value. Skewness may result even in unbiased estimators of expected value from simple lotteries, if measurement error is associated with both the probability and pay-off terms. Further, skewness may occur even if the error associated with these two estimates is symmetrically distributed. Under certain circumstances, skewed estimates of expected value may result in risk-neutral decisionmakers exhibiting a tendency to choose a certainty equivalent over a lottery of equal expected value, or vice versa. We show that when distributions of estimates of expected value are, positively skewed, under certain circumstances it will be optimal to choose lotteries with nominal values lower than the value of apparently superior certainty equivalents. Extending the previous work of Goodman (1960), we provide an exact formula for the skewness of products.  相似文献   
64.
Although social constructionists have taken the process by which people learn to present social problems for granted, these skills are acquired in the course of socialization. Through high school debate, adolescents acquire techniques for making arguments, using evidence, and presenting claims to multiple audiences. In the process, they learn that taking a public position does not necessarily require a deeply held commitment. This model resonates with the institutional structure of politics and law in the United States in which adversaries battle each other in a rule-governed "game,'a contest ultimately evaluated by judges assumed to be impartial. To understand the process by which adolescents gain the skills to construct social problems, I conducted an ethnographic study of debate teams at two high schools. The ability to take both sides of an argument, express ideas with which one does not personally agree, and present powerful, if questionable, evidence, constrained by time, teaches teenagers how to engage in social problem discourse and provides a training ground for moral entrepreneurs.  相似文献   
65.
We conduct laboratory experiments to investigate the effects of deterrence mechanisms under controlled conditions. The effect of the expected cost of punishment of an individual’s decision to engage in a proscribed activity and the effect of uncertainty on an individual’s decision to commit a violation are very difficult to isolate in field data. We use a roadway speeding framing and find that (a) individuals respond considerably to increases in the expected cost of speeding, (b) uncertainty about the enforcement regime yields a significant reduction in violations committed, and (c) people are much more likely to speed when the punishment regime for which they voted is implemented. Our results have important implications for a behavioral theory of deterrence under uncertainty.  相似文献   
66.
The topic of branch banking in the United States in the year 2000 is obviously one that has been in the minds of California bankers for some time because California is the largest state in the United States to permit virtually unlimited statewide branch banking. It is a topic that must also be in the minds of a large number of European and Asian bankers as well because several non-U.S. banking systems have already established large branch networks in the United States. It is a difficult topic because no one knows precisely what will be the status of branch banking in the year 1990, let alone the year 2000. This article makes some predictions.  相似文献   
67.
68.
We examine public sector restructuring in North America and selected Commonwealth Caribbean nations. Although all the countries studied experienced significant restruc-turing in response to public debt pressures, there were major differences across coun-tries in the magnitude, pace, form, and the manner in which restructuring decisions were made. These differences reflect the state of economic development and institu-tional characteristics, e.g., the role of the state and the industrial relations system. In developing countries, international lending institutions played a major role in trans-forming the role of the state. In developed countries, the inherent stability of the eco-nomic systems and institutional pressures led to a gradualist approach to restructuring.  相似文献   
69.
70.
This article introduces a new model of trend inflation. In contrast to many earlier approaches, which allow for trend inflation to evolve according to a random walk, ours is a bounded model which ensures that trend inflation is constrained to lie in an interval. The bounds of this interval can either be fixed or estimated from the data. Our model also allows for a time-varying degree of persistence in the transitory component of inflation. In an empirical exercise with CPI inflation, we find the model to work well, yielding more sensible measures of trend inflation and forecasting better than popular alternatives such as the unobserved components stochastic volatility model. This article has supplementary materials online.  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