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   8302篇
  免费   196篇
  国内免费   2篇
管理学   1157篇
民族学   37篇
人口学   844篇
丛书文集   42篇
理论方法论   773篇
综合类   96篇
社会学   4016篇
统计学   1535篇
  2023年   44篇
  2020年   104篇
  2019年   150篇
  2018年   178篇
  2017年   266篇
  2016年   193篇
  2015年   138篇
  2014年   168篇
  2013年   1453篇
  2012年   245篇
  2011年   223篇
  2010年   168篇
  2009年   161篇
  2008年   175篇
  2007年   170篇
  2006年   191篇
  2005年   173篇
  2004年   178篇
  2003年   155篇
  2002年   182篇
  2001年   180篇
  2000年   191篇
  1999年   190篇
  1998年   151篇
  1997年   148篇
  1996年   142篇
  1995年   126篇
  1994年   124篇
  1993年   129篇
  1992年   131篇
  1991年   145篇
  1990年   138篇
  1989年   156篇
  1988年   93篇
  1987年   128篇
  1986年   105篇
  1985年   133篇
  1984年   110篇
  1983年   118篇
  1982年   99篇
  1981年   97篇
  1980年   86篇
  1979年   93篇
  1978年   96篇
  1977年   75篇
  1976年   74篇
  1975年   70篇
  1974年   74篇
  1973年   52篇
  1971年   45篇
排序方式: 共有8500条查询结果,搜索用时 343 毫秒
981.
Arising from interest concerning the possibility of causal relationships among the three components of the Maslach Burnout Inventory, several process models have been proposed for the development of burnout. The present paper first reviews the evidence in favour of the three most influential of these (Leiter and Maslach's model (1988); Golembiewski, Boudreau, Munzenrider, & Luo's (1996) phase model; and Lee and Ashforth's model (1993)). These three models, and our own model (which integrates of two of them, and includes feedback effects of depersonalization on emotional exhaustion) are then compared with each other using structural equation modelling, drawing on longitudinal data from two Dutch samples (total N=1185). The review revealed that none of the seven previous studies on this issue provided any convincing support for any particular causal order proposed so far. In contrast, our own study showed that high levels of exhaustion were associated with high levels of depersonalization over time across both samples. Further, higher levels of depersonalization led to higher levels of emotional exhaustion and lower levels of personal accomplishment. To our knowledge, the present research is the first to provide reliable longitudinal evidence for the conceptualization of burnout as a developmental process, although the effects are not large enough to be of practical use in the recognition of burnout.  相似文献   
982.
Using the 1994–1998 waves of the Current Population Survey—Child Support Supplement (N =5,387), the aims of this study are to document child support obligation rates of nonresident fathers, to examine the effect of the obligation rate on child support compliance, and to calculate the trade‐off between fathers’ financial responsibility and children's well‐being, paying particular attention to low‐income fathers. The results indicate that low‐income fathers have high child support obligation rates, which significantly reduce their child support compliance. Although lowering the obligation rate for these fathers may improve their compliance, it does not fully offset the lowered obligation amounts and leads to a 30% net payment loss for welfare mothers and a 43% loss for nonwelfare mothers. Policy implications are discussed.  相似文献   
983.
984.
985.
986.
B B Johnson 《Child welfare》1987,66(2):165-173
The alliance of social work and theater is a natural and powerful coalition. The cooperation of two undergraduate programs to produce a preventive program on sexual abuse education reached over 4,000 children. Social work was the catalyst in terms of identifying the need, obtaining grant money, and developing community support. Theater provided the talent to produce an outstanding performance. Communities planning to develop successful prevention programs must develop community support, clear goals, a well-trained follow-up team, education for professionals who work with children daily, a clear channel for reporting abuse, and an evaluation process. The use of volunteers keeps the cost of the project to a minimum.  相似文献   
987.
988.
The authors examine the implications of G. L. v. Zumwalt, a case that resulted in a far-reaching consent decree that mandates specific reforms in policy and practice to be implemented by a public social welfare agency in its delivery of services to foster children and their families.  相似文献   
989.
The principal objective of this paper is to conduct a log-linear analysis of patterns of childlessness among Catholic and non-Catholic women in the United States. We address this issue by examining white women between the ages of thirty-five and forty-four, ascertaining whether they are voluntarily, involuntarily, or temporarily childless or childed. Given the long-standing emphasis of the Catholic Church regarding the importance of children in marriage and the family, an emphasis which was not reversed during the Second Vatican Council, we suggest that even after controlling for religious activity and educational attainment, Catholic women should be less disposed than non-Catholic women to choose voluntarily to have no children. We review various aspects of Church doctrine leading to such an hypothesis. Our results do not suggest an “end” to Catholic-non-Catholic differentials in childlessness. Catholic women between the ages of thirty-five and forty-four in 1976 were very far apart from non-Catholic women with respect to the voluntary decision to have no children. And they are also very different from non-Catholic women regarding patterns of involuntary childlessness. These differential patterns of voluntary and involuntary childlessness are discussed and analyzed.  相似文献   
990.
Recursive estimates of a probability density function (pdf) are known. This paper presents recursive estimates of a derivative of any desired order of a pdf. Let f be a pdf on the real line and p?0 be any desired integer. Based on a random sample of size n from f, estimators f(p)n of f(p), the pth order derivatives of f, are exhibited. These estimators are of the form n?1∑nj=1δjp, where δjp depends only on p and the jth observation in the sample, and hence can be computed recursively as the sample size increases. These estimators are shown to be asymptotically unbiased, mean square consistent and strongly consistent, both at a point and uniformly on the real line. For pointwise properties, the conditions on f(p) have been weakened with a little stronger assumption on the kernel function.  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