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   3647篇
  免费   108篇
  国内免费   19篇
管理学   478篇
民族学   34篇
人口学   638篇
丛书文集   12篇
理论方法论   208篇
综合类   209篇
社会学   1530篇
统计学   665篇
  2024年   5篇
  2023年   38篇
  2022年   24篇
  2021年   46篇
  2020年   95篇
  2019年   122篇
  2018年   172篇
  2017年   203篇
  2016年   226篇
  2015年   100篇
  2014年   134篇
  2013年   403篇
  2012年   313篇
  2011年   191篇
  2010年   74篇
  2009年   50篇
  2008年   66篇
  2007年   56篇
  2006年   45篇
  2005年   575篇
  2004年   304篇
  2003年   170篇
  2002年   55篇
  2001年   91篇
  2000年   47篇
  1999年   13篇
  1998年   21篇
  1997年   8篇
  1996年   9篇
  1995年   10篇
  1994年   3篇
  1993年   2篇
  1992年   10篇
  1991年   13篇
  1990年   8篇
  1989年   7篇
  1987年   3篇
  1986年   8篇
  1985年   7篇
  1984年   7篇
  1982年   4篇
  1981年   4篇
  1980年   2篇
  1979年   3篇
  1978年   2篇
  1976年   3篇
  1975年   4篇
  1972年   2篇
  1971年   2篇
  1968年   7篇
排序方式: 共有3774条查询结果,搜索用时 15 毫秒
1.
It is uncertain whether Latin America and Caribbean (LAC) countries are approaching a single mortality regime. Over the last three decades, LAC has experienced major public health interventions and the highest number of homicides in the world. However, these interventions and homicide rates are not evenly shared across countries. This study documents trends in life expectancy and lifespan variability for 20 LAC countries, 2000–14. By extending a previous method, we decompose differences in lifespan variability between LAC and a developed world benchmark into cause-specific effects. For both sexes, dispersion of amenable diseases through the age span makes the largest contribution to the gap between LAC and the benchmark. Additionally, for males, the concentration of homicides, accidents, and suicides in mid-life further impedes mortality convergence. Great disparity exists in the region: while some countries are rapidly approaching the developed regime, others remain far behind and suffer a clear disadvantage in population health.  相似文献   
2.
Sociolinguistic research has demonstrated that gossip is a co‐constructed phenomenon, which allows participants to establish solidarity and build alignments with each other, while evaluating an absent party. Gossip can also serve important social functions, such as helping to establish and reconfirm group norms and values. The present study provides a detailed analysis of an extended gossip episode that occurred within an institutional context: a study group interaction at a U.S. university. Our analysis shows how, in gossip, constructed dialogue both prompts and legitimizes pejorative evaluations towards an absent third party, and is actually the pivot around which group members negotiate values and norms in the process of arriving at a shared moral stance. Our analysis also demonstrates that alignment in gossip interactions is tenuous and must be continuously renewed.  相似文献   
3.
Lifetime Data Analysis - Frailty models are generally used to model heterogeneity between the individuals. The distribution of the frailty variable is often assumed to be continuous. However, there...  相似文献   
4.
Urban Ecosystems - The development of urban areas imposes challenges that wildlife must adapt to in order to persist in these new habitats. One of the greatest changes brought by urbanization has...  相似文献   
5.
We propose testing procedures for the hypothesis that a given set of discrete observations may be formulated as a particular time series of counts with a specific conditional law. The new test statistics incorporate the empirical probability-generating function computed from the observations. Special emphasis is given to the popular models of integer autoregression and Poisson autoregression. The asymptotic properties of the proposed test statistics are studied under the null hypothesis as well as under alternatives. A Monte Carlo power study on bootstrap versions of the new methods is included as well as real-data examples.  相似文献   
6.
Social Indicators Research - This paper analyses the Human Development Index (HDI) time series from 2010 to 2017. An alternative index is studied, which combines the same components of the HDI by...  相似文献   
7.
8.
It is well-known that, under Type II double censoring, the maximum likelihood (ML) estimators of the location and scale parameters, θ and δ, of a twoparameter exponential distribution are linear functions of the order statistics. In contrast, when θ is known, theML estimator of δ does not admit a closed form expression. It is shown, however, that theML estimator of the scale parameter exists and is unique. Moreover, it has good large-sample properties. In addition, sharp lower and upper bounds for this estimator are provided, which can serve as starting points for iterative interpolation methods such as regula falsi. Explicit expressions for the expected Fisher information and Cramér-Rao lower bound are also derived. In the Bayesian context, assuming an inverted gamma prior on δ, the uniqueness, boundedness and asymptotics of the highest posterior density estimator of δ can be deduced in a similar way. Finally, an illustrative example is included.  相似文献   
9.
侵权纠纷是民事诉讼机制解决的主要对象。随着社会的发展,侵权案件逐渐增多,过量的侵权诉讼会带来很多不良后果,不仅是对法律制度本身的损害,更对经济发展产生严重的负面影响。要解决侵权诉讼的膨胀问题,必须找到控制侵权诉讼的正确途径。  相似文献   
10.
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